CVE-2026-19654
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.8% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Modified
Affected
- Rsyslog < 8.2608.0
- Redhat Enterprise Linux 6.0
- Redhat Enterprise Linux 7.0
- Redhat Enterprise Linux 8.0
- Redhat Enterprise Linux 9.0
- Redhat Enterprise Linux 10.0
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-19654.md and follow it. Check whether this project is affected by CVE-2026-19654. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
References
- 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/errata/RHSA-2026:91582
- https://access.redhat.com/errata/RHSA-2026:95573
- 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