CVE catalog
CVE-2026-27858
Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedl
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.80% · Oct 25, 2026
Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No publicly available exploits are known.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | dovecot | sid | 1:2.4.5+dfsg1-4 | fixed |
| Debian | dovecot | forky | 1:2.4.5+dfsg1-4 | fixed |
| Debian | dovecot | trixie | 1:2.4.1+dfsg1-6+deb13u6 | fixed |
| Debian | dovecot | trixie-security | 1:2.4.1+dfsg1-6+deb13u7 | fixed |
| Debian | dovecot | bookworm | 1:2.3.19.1+dfsg1-2.1+deb12u6 | fixed |
| Debian | dovecot | bookworm-security | 1:2.3.19.1+dfsg1-2.1+deb12u6 | fixed |
| Cpe | dovecot | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-auth-lua | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-core | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-dev | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-gssapi | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-imapd | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-ldap | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-lmtpd | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-managesieved | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-mysql | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-pgsql | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-pop3d | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-sieve | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-solr | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-sqlite | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot-submissiond | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Cpe | dovecot | Not reported | 2.4.3 | fixed |
| Cpe | dovecot | Not reported | 2.3.22.1 | fixed |
| Cpe | dovecot | Not reported | 3.0.5 | fixed |
| Cpe | dovecot | Not reported | 3.1.4 | fixed |
| Cpe | dovecot | Not reported | 1:2.3.19.1+dfsg1-2.1+deb12u2 | fixed |
| Ubuntu | dovecot | pro | 1:2.1.7-7ubuntu3 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu1 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.1 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.3 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.4 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.5 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.6 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.6+esm1 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.6+esm2 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.6+esm3 | vulnerable |
| Ubuntu | dovecot | pro | 1:2.2.9-1ubuntu2.6+esm4 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.18-2ubuntu2 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu1 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.1 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.2 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.3 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.4 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.6 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.7 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.8 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.9 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.10 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.11 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.12 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.13 | vulnerable |
| Ubuntu | dovecot | 16.04 | 1:2.2.22-1ubuntu2.14 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.27-3ubuntu1 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu1 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu2 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu3 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.1 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.2 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.3 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.4 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.5 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.6 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.7 | vulnerable |
| Ubuntu | dovecot | 18.04 | 1:2.2.33.2-1ubuntu4.8 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.4.1-5ubuntu3 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu1 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu2 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.1 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.2 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.3 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.4 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.5 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.6 | vulnerable |
| Ubuntu | dovecot | 20.04 | 1:2.3.7.2-1ubuntu3.7 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.13+dfsg1-1ubuntu3 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu1 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.1 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.2 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.4 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.6 | vulnerable |
| Ubuntu | dovecot | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.7 | fixed |
| Ubuntu | dovecot | 24.04 | 1:2.3.20+dfsg1-1ubuntu3 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu1 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu2 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu4 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu5 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu6 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu6.1 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu6.2 | vulnerable |
| Ubuntu | dovecot | 24.04 | 1:2.3.21+dfsg1-2ubuntu6.3 | fixed |
| Ubuntu | dovecot | 25.10 | 1:2.3.21.1+dfsg1-1ubuntu2 | vulnerable |
| Ubuntu | dovecot | 25.10 | 1:2.4.1+dfsg1-5ubuntu1 | vulnerable |
| Ubuntu | dovecot | 25.10 | 1:2.4.1+dfsg1-5ubuntu3 | vulnerable |
| Ubuntu | dovecot | 25.10 | 1:2.4.1+dfsg1-5ubuntu4 | vulnerable |
| Ubuntu | dovecot | 25.10 | 1:2.4.1+dfsg1-5ubuntu4.1 | fixed |
| Cpe | dovecot | Not reported | 3.1.4 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | dovecot | source | sid | 1:2.4.3+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | dovecot | source | forky | 1:2.4.3+dfsg1-1 | not yet assigned | Not reported | Not reported |
| Debian | dovecot | source | trixie | 1:2.4.1+dfsg1-6+deb13u4 | not yet assigned | Not reported | Not reported |
| Debian | dovecot | source | bookworm | 1:2.3.19.1+dfsg1-2.1+deb12u2 | not yet assigned | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-auth-lua | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-core | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-dev | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-gssapi | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-imapd | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-ldap | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-lmtpd | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-managesieved | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-mysql | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-pgsql | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-pop3d | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-sieve | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-solr | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-sqlite | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot-submissiond | cpe | Not reported | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 2.4.3 | Not reported | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 2.3.22.1 | Not reported | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 3.0.5 | Not reported | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 3.1.4 | Not reported | Not reported | Not reported |
| Cpe | dovecot | cpe | Not reported | 1:2.3.19.1+dfsg1-2.1+deb12u2 | Not reported | Not reported | Not reported |
| Ubuntu | dovecot | deb | 22.04 | 1:2.3.16+dfsg1-3ubuntu2.7 | Not reported | UBUNTU-CVE-2026-27858 | Not reported |
| Ubuntu | dovecot | deb | 24.04 | 1:2.3.21+dfsg1-2ubuntu6.3 | Not reported | UBUNTU-CVE-2026-27858 | Not reported |
| Ubuntu | dovecot | deb | 25.10 | 1:2.4.1+dfsg1-5ubuntu4.1 | Not reported | UBUNTU-CVE-2026-27858 | Not reported |
| Cpe | dovecot | cpe | Not reported | 3.1.4 | Not reported | NVD-CVE-2026-27858 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [dovecot-auth-lua]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-core]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-dev]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-gssapi]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-imapd]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-ldap]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-lmtpd]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-lucene]Fixed
Source package: [dovecot]
Details (4)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-managesieved]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-mysql]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-pgsql]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-pop3d]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-sieve]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-solr]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-sqlite]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
- [dovecot-submissiond]Fixed
Source package: [dovecot]
Details (6)
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookwormFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· amd64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.21.1+dfsg1-1~bpo12+1· arm64 · bookworm-backportsFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· amd64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
1:2.3.19.1+dfsg1-2.1+deb12u6· arm64 · bookworm-securityFixed · Fixed:
1:2.3.19.1+dfsg1-2.1+deb12u2nvd · dovecot · debian · bookworm; nvd · dovecot · debian · 12
[Debian 13 (Trixie)]
- [dovecot-auth-lua]Fixed
Source package: [dovecot]
Details (5)
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixie-security · Historical versionFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u7· amd64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
- [dovecot-core]Fixed
Source package: [dovecot]
Details (5)
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixie-security · Historical versionFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u7· amd64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
- [dovecot-dev]Fixed
Source package: [dovecot]
Details (5)
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixie-security · Historical versionFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u7· amd64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
- [dovecot-flatcurve]Fixed
Source package: [dovecot]
Details (5)
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixieFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· amd64 · trixie-security · Historical versionFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u6· arm64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
1:2.4.1+dfsg1-6+deb13u7· amd64 · trixie-securityFixed · Fixed:
1:2.4.1+dfsg1-6+deb13u4nvd · dovecot · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:13498]
- [https://access.redhat.com/errata/RHSA-2026:13830]
- [https://access.redhat.com/errata/RHSA-2026:13857]
- [https://access.redhat.com/errata/RHSA-2026:17602]
- [https://access.redhat.com/errata/RHSA-2026:17625]
- [https://access.redhat.com/errata/RHSA-2026:17626]
- [https://access.redhat.com/errata/RHSA-2026:17628]
- [https://access.redhat.com/errata/RHSA-2026:17630]
- [https://access.redhat.com/errata/RHSA-2026:18053]
- [https://access.redhat.com/errata/RHSA-2026:19149]
- [https://access.redhat.com/errata/RHSA-2026:19364]
- [https://access.redhat.com/errata/RHSA-2026:19453]
- [https://access.redhat.com/errata/RHSA-2026:19455]
- [https://access.redhat.com/errata/RHSA-2026:26564]
- [https://access.redhat.com/security/cve/CVE-2026-27858]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2452175]
- [https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json]
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4139-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-27858]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-27858]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-27858]
- [https://security-tracker.debian.org/tracker/CVE-2026-27858]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27858.json]
- [https://ubuntu.com/security/notices/USN-8136-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0891.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]