CVE-2026-19654
CVE-2026-19654 · Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A unauthenticated remote peer may lead rsyslogd to crash due to a flaw in the optional imptcp module. A crafted input sequence during oversize-frame recovery can cause an invalid internal message length and terminate rsyslogd. No confidentiality or integrity impact, privilege escalation, or code execution has been identified. imtcp and the default imptcp framing modes are not affected.
CVSS 7.5 · High · EPSS 0.6% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:8.2510.0-5.el10_2.1: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:8.2412.0-1.el10_0.1: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:8.2102.0-15.el8_10.3: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 0:8.2102.0-13.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 0:8.2102.0-13.el8_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:8.2510.0-2.el9_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:8.2102.0-113.el9_2.3: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
- Versions
- ≥ 0:8.2310.0-4.el9_4.1: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:8.2412.0-1.el9_6.2: Not affected (rpm)
No fix published
red hat update infrastructure 5
- Versions
- ≥ 1790241900: Not affected (rpm)
No fix published
red hat enterprise linux 6
No fix published
red hat enterprise linux 7
No fix published
rsyslog Debian:12
- Versions
- 8.2302.0-1
- 8.2302.0-1+deb12u1
- 8.2304.0-1
- 8.2306.0-1
- 8.2306.0-2
- 8.2308.0-1
- 8.2310.0-1
- 8.2310.0-2
- 8.2310.0-3
- 8.2310.0-4
- 8.2312.0-1
- 8.2312.0-2
- 8.2312.0-3
- 8.2402.0-1
- 8.2404.0-1
- 8.2404.0-2
- 8.2406.0-1
- 8.2408.0-1
- 8.2408.0-2
- 8.2410.0-1
- 8.2412.0-1
- 8.2412.0-2
- 8.2502.0-1
- 8.2502.0-2
- 8.2502.0-3
- 8.2502.0-4
- 8.2502.0-5
- 8.2502.0-6
- 8.2504.0-1
- 8.2506.0-1
- 8.2506.0-2
- 8.2506.0-3
- 8.2506.0-4
- 8.2506.0-6
- 8.2510.0-1
- 8.2510.0-2
- 8.2510.0-3
- 8.2510.0-4
- 8.2510.0-5
- 8.2512.0-1
- 8.2512.0-2
- 8.2512.0-3
- 8.2602.0-1
- 8.2604.0-1
- 8.2604.0-2
- 8.2604.0-3
- 8.2604.0-4
- 8.2606.0-1
- 8.2606.0-2
- 8.2606.0-3
- 8.2606.0-4
- 8.2608.0-1
- 8.2608.0-2
- 8.2608.0-3
- 8.2608.0-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
rsyslog Debian:13
- Versions
- 8.2504.0-1
- Affected ranges
- ECOSYSTEM: < 8.2504.0-1+deb13u1
Update to 8.2504.0-1+deb13u1
rsyslog Debian:14
- Versions
- 8.2504.0-1
- 8.2506.0-1
- 8.2506.0-2
- 8.2506.0-3
- 8.2506.0-4
- 8.2506.0-6
- 8.2510.0-1
- 8.2510.0-2
- 8.2510.0-3
- 8.2510.0-4
- 8.2510.0-5
- 8.2512.0-1
- 8.2512.0-2
- 8.2512.0-3
- 8.2602.0-1
- 8.2604.0-1
- 8.2604.0-2
- 8.2604.0-3
- 8.2604.0-4
- 8.2606.0-1
- 8.2606.0-2
- 8.2606.0-3
- 8.2606.0-4
- Affected ranges
- ECOSYSTEM: < 8.2608.0-1
Update to 8.2608.0-1
rsyslog Ubuntu:14.04:LTS
- Versions
- 5.8.11-2ubuntu4
- 7.4.4-1ubuntu1
- 7.4.4-1ubuntu2
- 7.4.4-1ubuntu2.1
- 7.4.4-1ubuntu2.3
- 7.4.4-1ubuntu2.5
- 7.4.4-1ubuntu2.6
- 7.4.4-1ubuntu2.7
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
rsyslog Ubuntu:Pro:16.04:LTS
- Versions
- 8.12.0-1ubuntu2
- 8.12.0-1ubuntu3
- 8.14.0-2ubuntu1
- 8.14.0-2ubuntu2
- 8.16.0-1ubuntu1
- 8.16.0-1ubuntu2
- 8.16.0-1ubuntu3
- 8.16.0-1ubuntu3.1
- 8.16.0-1ubuntu3.1+esm1
- 8.16.0-1ubuntu3.1+esm2
- 8.16.0-1ubuntu3.1+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
rsyslog Ubuntu:Pro:18.04:LTS
- Versions
- 8.16.0-1ubuntu9
- 8.16.0-1ubuntu10
- 8.32.0-1ubuntu3
- 8.32.0-1ubuntu4
- 8.32.0-1ubuntu4.2
- 8.32.0-1ubuntu4.2+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
rsyslog Ubuntu:Pro:20.04:LTS
- Versions
- 8.1901.0-1ubuntu4
- 8.2001.0-1ubuntu1
- 8.2001.0-1ubuntu1.1
- 8.2001.0-1ubuntu1.3
- 8.2001.0-1ubuntu1.3+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
rsyslog Ubuntu:22.04:LTS
- Versions
- 8.2102.0-2ubuntu2
- 8.2110.0-3ubuntu1
- 8.2110.0-3ubuntu2
- 8.2110.0-4ubuntu1
- 8.2112.0-2ubuntu2
- 8.2112.0-2ubuntu2.2
- Affected ranges
- ECOSYSTEM: < 8.2112.0-2ubuntu2.4
Update to 8.2112.0-2ubuntu2.4
rsyslog Ubuntu:24.04:LTS
- Versions
- 8.2306.0-2ubuntu2
- 8.2312.0-3ubuntu1
- 8.2312.0-3ubuntu2
- 8.2312.0-3ubuntu3
- 8.2312.0-3ubuntu7
- 8.2312.0-3ubuntu8
- 8.2312.0-3ubuntu9
- 8.2312.0-3ubuntu9.1
- 8.2312.0-3ubuntu9.2
- Affected ranges
- ECOSYSTEM: < 8.2312.0-3ubuntu9.3
Update to 8.2312.0-3ubuntu9.3
rsyslog Ubuntu:26.04:LTS
- Versions
- 8.2504.0-1ubuntu2
- 8.2512.0-1ubuntu2
- 8.2512.0-1ubuntu3
- 8.2512.0-1ubuntu4
- Affected ranges
- ECOSYSTEM: < 8.2512.0-1ubuntu4.1
Update to 8.2512.0-1ubuntu4.1
Original sources
- https://access.redhat.com/errata/RHSA-2026:66405
- https://access.redhat.com/errata/RHSA-2026:67583
- https://access.redhat.com/errata/RHSA-2026:67584
- https://access.redhat.com/errata/RHSA-2026:71603
- https://access.redhat.com/errata/RHSA-2026:80817
- https://access.redhat.com/errata/RHSA-2026:84571
- https://access.redhat.com/errata/RHSA-2026:84576
- https://access.redhat.com/errata/RHSA-2026:86124
- https://access.redhat.com/errata/RHSA-2026:87408
- https://access.redhat.com/security/cve/CVE-2026-19654
- https://bugzilla.redhat.com/show_bug.cgi?id=2502868
- https://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29
- https://nvd.nist.gov/vuln/detail/CVE-2026-19654