High 7.5Published Aug 12, 2026

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 (Oct 27, 2026, 12:30 PM ET)

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It affects Red Hat Enterprise Linux 10 and 6 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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Every CVE for Red Hat Enterprise Linux 10

Exploited in the last 30 days

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 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

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 8.8 Telecommunications Update Service redhat:rhel_e4s	from 0:8.2102.0-13.el8_8.1 not affected	CNA record
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service redhat:rhel_tus	from 0:8.2102.0-13.el8_8.1 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

References

https://access.redhat.com/errata/RHSA-2026:66405	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:67583	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:67584	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:71603	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:80817	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:84571	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:84576	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:86124	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:87408	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-19654	vdb-entry, x-refsource-redhat, third-party-advisory
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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.