Catalogo CVE
CVE-2026-78002
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerabi
- Gravità
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.82% · Oct 22, 2026
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
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 | rsyslog | sid | 8.2608.0-4 | fixed |
| Debian | rsyslog | forky | 8.2608.0-4 | fixed |
| Debian | rsyslog | trixie | 8.2504.0-1+deb13u2 | fixed |
| Debian | rsyslog | bookworm | 8.2302.0-1+deb12u1 | vulnerable |
| Ubuntu | rsyslog | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-czmq | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-elasticsearch | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-gnutls | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-gssapi | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-hiredis | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-kafka | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-kubernetes | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-mongodb | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-mysql | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-openssl | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-pgsql | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-relp | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog-snmp | noble | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog | pro | 8.1901.0-1ubuntu4 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.1 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.3 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.3+esm1 | fixed |
| Ubuntu | rsyslog | 22.04 | 8.2102.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-3ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-3ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-4ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.4 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.5 | fixed |
| Ubuntu | rsyslog | 24.04 | 8.2306.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu3 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu7 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu8 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.1 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.3 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog | 26.04 | 8.2504.0-1ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu3 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4.1 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4.2 | fixed |
| Ubuntu | rsyslog | pro | 8.1901.0-1ubuntu4 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.1 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.3 | vulnerable |
| Ubuntu | rsyslog | pro | 8.2001.0-1ubuntu1.3+esm1 | fixed |
| Ubuntu | rsyslog | 22.04 | 8.2102.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-3ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-3ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2110.0-4ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.2 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.4 | vulnerable |
| Ubuntu | rsyslog | 22.04 | 8.2112.0-2ubuntu2.5 | fixed |
| Ubuntu | rsyslog | 24.04 | 8.2306.0-2ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu1 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu3 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu7 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu8 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.1 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.2 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.3 | vulnerable |
| Ubuntu | rsyslog | 24.04 | 8.2312.0-3ubuntu9.4 | fixed |
| Ubuntu | rsyslog | 26.04 | 8.2504.0-1ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu2 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu3 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4.1 | vulnerable |
| Ubuntu | rsyslog | 26.04 | 8.2512.0-1ubuntu4.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rsyslog | source | sid | 8.2608.0-4 | not yet assigned | Not reported | [1145980] |
| Debian | rsyslog | source | forky | 8.2608.0-4 | not yet assigned | Not reported | [1145980] |
| Debian | rsyslog | source | trixie | 8.2504.0-1+deb13u2 | not yet assigned | Not reported | [1145980] |
| Debian | rsyslog | source | bookworm | (unfixed) | not yet assigned | Not reported | [1145980] |
| Ubuntu | rsyslog | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-czmq | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-elasticsearch | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-gnutls | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-gssapi | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-hiredis | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-kafka | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-kubernetes | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-mongodb | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-mysql | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-openssl | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-pgsql | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-relp | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog-snmp | deb | noble | 8.2312.0-3ubuntu9.4 | Not reported | Not reported | Not reported |
| Ubuntu | rsyslog | deb | pro | 8.2001.0-1ubuntu1.3+esm1 | Not reported | USN-8786-1 | Not reported |
| Ubuntu | rsyslog | deb | 22.04 | 8.2112.0-2ubuntu2.5 | Not reported | USN-8786-1 | Not reported |
| Ubuntu | rsyslog | deb | 24.04 | 8.2312.0-3ubuntu9.4 | Not reported | USN-8786-1 | Not reported |
| Ubuntu | rsyslog | deb | 26.04 | 8.2512.0-1ubuntu4.2 | Not reported | USN-8786-1 | Not reported |
| Ubuntu | rsyslog | deb | pro | 8.2001.0-1ubuntu1.3+esm1 | Not reported | UBUNTU-CVE-2026-78002 | Not reported |
| Ubuntu | rsyslog | deb | 22.04 | 8.2112.0-2ubuntu2.5 | Not reported | UBUNTU-CVE-2026-78002 | Not reported |
| Ubuntu | rsyslog | deb | 24.04 | 8.2312.0-3ubuntu9.4 | Not reported | UBUNTU-CVE-2026-78002 | Not reported |
| Ubuntu | rsyslog | deb | 26.04 | 8.2512.0-1ubuntu4.2 | Not reported | UBUNTU-CVE-2026-78002 | Not reported |
Notes
[bookworm] rsyslog: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [rsyslog]Interessata
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-czmq]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-elasticsearch]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-gnutls]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-gssapi]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-hiredis]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-kafka]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-kubernetes]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-mongodb]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-mysql]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-openssl]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-pgsql]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-relp]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
- [rsyslog-snmp]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2302.0-1+deb12u1· amd64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
8.2302.0-1+deb12u1· arm64 · bookwormInteressata
nvd · rsyslog · debian · bookworm; nvd · rsyslog · debian · 12
[Debian 13 (Trixie)]
- [rsyslog]Interessata
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
- [rsyslog-clickhouse]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
- [rsyslog-czmq]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
- [rsyslog-docker]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
- [rsyslog-elasticsearch]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
- [rsyslog-gnutls]Interessata
Pacchetto sorgente: [rsyslog]
Dettagli (2)
8.2504.0-1· amd64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
8.2504.0-1· arm64 · trixieInteressata · Corretta:
8.2504.0-1+deb13u2nvd · rsyslog · debian · 13
Osservato:
Riferimenti
- [https://access.redhat.com/errata/RHSA-2026:69540]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_84576.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-78002]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-78002]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-78002]
- [https://osv.dev/vulnerability/USN-8786-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-78002]
- [https://ubuntu.com/security/notices/USN-8786-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3094.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)]