CVE catalog
CVE-2026-41989
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
- 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
- 0.18% · Oct 25, 2026
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
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 | libgcrypt20 | sid | 1.12.4-2 | fixed |
| Debian | libgcrypt20 | forky | 1.12.4-2 | fixed |
| Debian | libgcrypt20 | trixie | 1.11.0-7+deb13u1 | fixed |
| Debian | libgcrypt20 | trixie-security | 1.11.0-7+deb13u1 | fixed |
| Debian | libgcrypt20 | bookworm | 1.10.1-3+deb12u1 | fixed |
| Debian | libgcrypt20 | bookworm-security | 1.10.1-3+deb12u1 | fixed |
| Cpe | libgcrypt20 | Not reported | 1.10.3-2ubuntu0.1 | fixed |
| Cpe | libgcrypt-mingw-w64-dev | Not reported | 1.10.3-2ubuntu0.1 | fixed |
| Cpe | libgcrypt20-dev | Not reported | 1.10.3-2ubuntu0.1 | fixed |
| Cpe | libgcrypt20-doc | Not reported | 1.10.3-2ubuntu0.1 | fixed |
| Cpe | libgcrypt | Not reported | 1.10.4 | fixed |
| Cpe | libgcrypt | Not reported | 1.11.3 | fixed |
| Cpe | libgcrypt | Not reported | 1.12.2 | fixed |
| Cpe | libgcrypt20 | Not reported | 1.10.1-3+deb12u1 | fixed |
| Cpe | libgcrypt | Not reported | 1.12.2 | fixed |
| Suse | libgcrypt | linux enterprise micro 5.3 | 1.9.4-150400.6.14.1 | fixed |
| Suse | libgcrypt | linux enterprise micro 5.4 | 1.9.4-150400.6.14.1 | fixed |
| Ubuntu | libgcrypt20 | pro | 1.10.3-2ubuntu0.1~Fips1~rc6 | vulnerable |
| Ubuntu | libgcrypt20 | pro | 1.10.3-2ubuntu0.1~Fips1~rc7 | vulnerable |
| Ubuntu | libgcrypt20 | pro | 1.12.0-2ubuntu0.1~Fips1~rc11 | fixed |
| Ubuntu | libgcrypt20 | 18.04 | 1.7.8-2ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.7.9-1 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.8.1-4 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.8.1-4ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.8.1-4ubuntu1.1 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.8.1-4ubuntu1.2 | vulnerable |
| Ubuntu | libgcrypt20 | 18.04 | 1.8.1-4ubuntu1.3 | vulnerable |
| Ubuntu | libgcrypt20 | 20.04 | 1.8.4-5ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 20.04 | 1.8.5-3ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 20.04 | 1.8.5-5ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 20.04 | 1.8.5-5ubuntu1.1 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.8.7-5ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu3 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu3.2 | fixed |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.2-3ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2build1 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2ubuntu0.1 | fixed |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-6ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7build1 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7ubuntu0.1 | fixed |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.0-7build1 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.2-2 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.2-3 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.12.0-2 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.12.0-2ubuntu0.1 | fixed |
| Suse | libgcrypt | linux enterprise micro 5.5 | 1.9.4-150500.12.6.1 | fixed |
| Suse | libgcrypt | linux micro 6.1 | 1.10.3-slfo.1.1_4.1 | fixed |
| Suse | libgcrypt | linux micro 6.0 | 1.10.3-4.1 | fixed |
| Suse | libgcrypt | linux enterprise server 16.0 | 1.12.1-160000.3.1 | fixed |
| Suse | libgcrypt | linux enterprise server for sap applications 16.0 | 1.12.1-160000.3.1 | fixed |
| Opensuse | libgcrypt | leap 16.0 | 1.12.1-160000.3.1 | fixed |
| Suse | libgcrypt | linux micro 6.2 | 1.12.1-160000.3.1 | fixed |
| Suse | libgcrypt | linux enterprise module for basesystem 15 sp7 | 1.11.0-150700.5.10.1 | fixed |
| Ubuntu | libgcrypt20 | 22.04 | 1.8.7-5ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu3 | vulnerable |
| Ubuntu | libgcrypt20 | 22.04 | 1.9.4-3ubuntu3.2 | fixed |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.2-3ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2build1 | vulnerable |
| Ubuntu | libgcrypt20 | 24.04 | 1.10.3-2ubuntu0.1 | fixed |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-6ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7build1 | vulnerable |
| Ubuntu | libgcrypt20 | 25.10 | 1.11.0-7ubuntu0.1 | fixed |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.0-7build1 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.2-2 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.11.2-3 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.12.0-2 | vulnerable |
| Ubuntu | libgcrypt20 | 26.04 | 1.12.0-2ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libgcrypt20 | source | sid | 1.12.2-1 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | forky | 1.12.2-1 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | trixie | 1.11.0-7+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | bookworm | 1.10.1-3+deb12u1 | not yet assigned | Not reported | Not reported |
| Cpe | libgcrypt20 | cpe | Not reported | 1.10.3-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt-mingw-w64-dev | cpe | Not reported | 1.10.3-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt20-dev | cpe | Not reported | 1.10.3-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt20-doc | cpe | Not reported | 1.10.3-2ubuntu0.1 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt | cpe | Not reported | 1.10.4 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt | cpe | Not reported | 1.11.3 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt | cpe | Not reported | 1.12.2 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt20 | cpe | Not reported | 1.10.1-3+deb12u1 | Not reported | Not reported | Not reported |
| Cpe | libgcrypt | cpe | Not reported | 1.12.2 | Not reported | NVD-CVE-2026-41989 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise micro 5.3 | 1.9.4-150400.6.14.1 | Not reported | SUSE-SU-2026:3921-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise micro 5.4 | 1.9.4-150400.6.14.1 | Not reported | SUSE-SU-2026:3921-1 | Not reported |
| Ubuntu | libgcrypt20 | deb | pro | 1.12.0-2ubuntu0.1~Fips1~rc11 | Not reported | UBUNTU-CVE-2026-41989 | Not reported |
| Ubuntu | libgcrypt20 | deb | 22.04 | 1.9.4-3ubuntu3.2 | Not reported | UBUNTU-CVE-2026-41989 | Not reported |
| Ubuntu | libgcrypt20 | deb | 24.04 | 1.10.3-2ubuntu0.1 | Not reported | UBUNTU-CVE-2026-41989 | Not reported |
| Ubuntu | libgcrypt20 | deb | 25.10 | 1.11.0-7ubuntu0.1 | Not reported | UBUNTU-CVE-2026-41989 | Not reported |
| Ubuntu | libgcrypt20 | deb | 26.04 | 1.12.0-2ubuntu0.1 | Not reported | UBUNTU-CVE-2026-41989 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise micro 5.5 | 1.9.4-150500.12.6.1 | Not reported | SUSE-SU-2026:3491-1 | Not reported |
| Suse | libgcrypt | rpm | linux micro 6.1 | 1.10.3-slfo.1.1_4.1 | Not reported | SUSE-SU-2026:22907-1 | Not reported |
| Suse | libgcrypt | rpm | linux micro 6.0 | 1.10.3-4.1 | Not reported | SUSE-SU-2026:22919-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server 16.0 | 1.12.1-160000.3.1 | Not reported | SUSE-SU-2026:22826-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server for sap applications 16.0 | 1.12.1-160000.3.1 | Not reported | SUSE-SU-2026:22826-1 | Not reported |
| Opensuse | libgcrypt | rpm | leap 16.0 | 1.12.1-160000.3.1 | Not reported | OPENSUSE-SU-2026:21387-1 | Not reported |
| Suse | libgcrypt | rpm | linux micro 6.2 | 1.12.1-160000.3.1 | Not reported | SUSE-SU-2026:22760-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise module for basesystem 15 sp7 | 1.11.0-150700.5.10.1 | Not reported | SUSE-SU-2026:3182-1 | Not reported |
| Ubuntu | libgcrypt20 | deb | 22.04 | 1.9.4-3ubuntu3.2 | Not reported | USN-8319-1 | Not reported |
| Ubuntu | libgcrypt20 | deb | 24.04 | 1.10.3-2ubuntu0.1 | Not reported | USN-8319-1 | Not reported |
| Ubuntu | libgcrypt20 | deb | 25.10 | 1.11.0-7ubuntu0.1 | Not reported | USN-8319-1 | Not reported |
| Ubuntu | libgcrypt20 | deb | 26.04 | 1.12.0-2ubuntu0.1 | Not reported | USN-8319-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libgcrypt20]Fixed
Details (4)
1.10.1-3+deb12u1· amd64 · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
- [libgcrypt20-dev]Fixed
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· amd64 · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
- [libgcrypt20-doc]Fixed
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
- [libgcrypt-mingw-w64-dev]Fixed
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.10.1-3+deb12u1nvd · libgcrypt20 · debian · bookworm; nvd · libgcrypt20 · debian · 12
[Debian 13 (Trixie)]
- [libgcrypt20]Fixed
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
- [libgcrypt20-dev]Fixed
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
- [libgcrypt20-doc]Fixed
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
- [libgcrypt-bin]Fixed
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
- [libgcrypt-mingw-w64-dev]Fixed
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.11.0-7+deb13u1nvd · libgcrypt20 · debian · 13
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-019113.json]
- [https://cert-portal.siemens.com/productcert/html/ssa-019113.html]
- [https://cert-portal.siemens.com/productcert/html/ssa-082556.html]
- [https://cert-portal.siemens.com/productcert/html/ssa-457936.html]
- [https://dev.gnupg.org/T8211]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_50144.json]
- [https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-41989]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-41989]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22760-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22826-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22907-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22919-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3182-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3491-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3921-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-41989]
- [https://osv.dev/vulnerability/USN-8319-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21387-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-41989]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41989.json]
- [https://ubuntu.com/security/notices/USN-8319-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2437.json]
- [https://www.openwall.com/lists/oss-security/2026/04/21/1]
[CERT-Bund public advisories] · [CISA cybersecurity 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)]