High severity7.5NVD Advisory· Published Aug 12, 2026· Updated Nov 5, 2026
CVE-2026-19654
CVE-2026-19654
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
28cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- osv-coords21 versionspkg:rpm/almalinux/rsyslogpkg:rpm/almalinux/rsyslog-cryptopkg:rpm/almalinux/rsyslog-docpkg:rpm/almalinux/rsyslog-elasticsearchpkg:rpm/almalinux/rsyslog-gnutlspkg:rpm/almalinux/rsyslog-gssapipkg:rpm/almalinux/rsyslog-kafkapkg:rpm/almalinux/rsyslog-logrotatepkg:rpm/almalinux/rsyslog-mmauditpkg:rpm/almalinux/rsyslog-mmfieldspkg:rpm/almalinux/rsyslog-mmjsonparsepkg:rpm/almalinux/rsyslog-mmkubernetespkg:rpm/almalinux/rsyslog-mmnormalizepkg:rpm/almalinux/rsyslog-mmsnmptrapdpkg:rpm/almalinux/rsyslog-mysqlpkg:rpm/almalinux/rsyslog-omamqp1pkg:rpm/almalinux/rsyslog-opensslpkg:rpm/almalinux/rsyslog-pgsqlpkg:rpm/almalinux/rsyslog-relppkg:rpm/almalinux/rsyslog-snmppkg:rpm/almalinux/rsyslog-udpspoof
< 8.2510.0-2.el9_8.1+ 20 more
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
- (no CPE)range: < 8.2510.0-2.el9_8.1
Patches
Vulnerability mechanics
References
14- access.redhat.com/security/cve/CVE-2026-19654nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29nvdVendor Advisory
- access.redhat.com/errata/RHSA-2026:66405nvd
- access.redhat.com/errata/RHSA-2026:67583nvd
- access.redhat.com/errata/RHSA-2026:67584nvd
- access.redhat.com/errata/RHSA-2026:71603nvd
- access.redhat.com/errata/RHSA-2026:80817nvd
- access.redhat.com/errata/RHSA-2026:84571nvd
- access.redhat.com/errata/RHSA-2026:84576nvd
- access.redhat.com/errata/RHSA-2026:86124nvd
- access.redhat.com/errata/RHSA-2026:87408nvd
- access.redhat.com/errata/RHSA-2026:91582nvd
- access.redhat.com/errata/RHSA-2026:95573nvd
News mentions
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