RHSA-2026:67584MediumCVSS 7.5

Red Hat Security Advisory: rsyslog security update

Published
September 15, 2026
Last Modified
October 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-19654 →

📋 Description

CVE-2026-19654 — rsyslog: A configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd

🎯 Affected products159

  • Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-0:8.2510.0-5.el10_2.1.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-debuginfo-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-debuginfo-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-debuginfo-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-crypto-debuginfo-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debuginfo-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debuginfo-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debuginfo-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debuginfo-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debugsource-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debugsource-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debugsource-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-debugsource-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-doc-0:8.2510.0-5.el10_2.1.noarch as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-0:8.2510.0-5.el10_2.1.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-debuginfo-0:8.2510.0-5.el10_2.1.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-debuginfo-0:8.2510.0-5.el10_2.1.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • rsyslog-elasticsearch-debuginfo-0:8.2510.0-5.el10_2.1.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +129 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, users that are relying on the imptcp module can implement one of the following options: 1) Remove the framing.delimiter.regex from the affected 2) Disabled the affected `imptcp` listener or unload `imptcp` if it's not required 3) Restrict the network access to the listener to trusted senders only

🔗 References (4)