CVE-2026-19654Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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 (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:8.2510.0-5.el10_2.1 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:8.2412.0-1.el10_0.1 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:8.2412.0-1.el9_6.2 not affected | CNA record |
Red Hat Red Hat Update Infrastructure 5 redhat:rhui | from 1790241900 not affected | CNA record |
rsyslog rsyslog rsyslog:rsyslog | from 8.36.0 before 8.2608.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0; 8.0; 9.0; 10.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2026:66405vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67583vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67584vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71603vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:80817vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:84576vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-19654vdb-entry, x-refsource-redhat, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2502868issue-tracking, x-refsource-redhat, third-party-advisory
- https://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.