RHSA-2026:95573: Important: rsyslog security update

Published Nov 5, 2026
·
Updated

Important: rsyslog security update

Other sources

The rsyslog packages provide an enhanced, multi-threaded syslog daemon. It supports MySQL, syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, and fine-grained control over output format.Security Fix(es): rsyslog: A configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd (CVE-2026-19654) rsyslog: rsyslog: Denial of service via heap buffer overflow in RainerScript replace() function (CVE-2026-78002) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

39 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life
Red Hat Red Hat Enterprise Linux Server - AUS
redhat/rsyslog<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-crypto<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-crypto-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-debugsource<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-doc<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-elasticsearch<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-elasticsearch-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-gnutls<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-gnutls-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-gssapi<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-gssapi-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-kafka<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-kafka-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmaudit<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmaudit-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmjsonparse<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmjsonparse-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmkubernetes<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmkubernetes-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmnormalize<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmnormalize-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmsnmptrapd<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mmsnmptrapd-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mysql<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-mysql-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-omamqp1<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-omamqp1-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-pgsql<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-pgsql-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-relp<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-relp-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-snmp<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-snmp-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-udpspoof<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5
redhat/rsyslog-udpspoof-debuginfo<8.1911.0-7.el8_4.5
8.1911.0-7.el8_4.5

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/rsyslog to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  2. Upgrade

    Upgrade redhat/rsyslog-crypto to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  3. Upgrade

    Upgrade redhat/rsyslog-crypto-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  4. Upgrade

    Upgrade redhat/rsyslog-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  5. Upgrade

    Upgrade redhat/rsyslog-debugsource to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  6. Upgrade

    Upgrade redhat/rsyslog-doc to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  7. Upgrade

    Upgrade redhat/rsyslog-elasticsearch to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  8. Upgrade

    Upgrade redhat/rsyslog-elasticsearch-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  9. Upgrade

    Upgrade redhat/rsyslog-gnutls to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  10. Upgrade

    Upgrade redhat/rsyslog-gnutls-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  11. Upgrade

    Upgrade redhat/rsyslog-gssapi to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  12. Upgrade

    Upgrade redhat/rsyslog-gssapi-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  13. Upgrade

    Upgrade redhat/rsyslog-kafka to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  14. Upgrade

    Upgrade redhat/rsyslog-kafka-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  15. Upgrade

    Upgrade redhat/rsyslog-mmaudit to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  16. Upgrade

    Upgrade redhat/rsyslog-mmaudit-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  17. Upgrade

    Upgrade redhat/rsyslog-mmjsonparse to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  18. Upgrade

    Upgrade redhat/rsyslog-mmjsonparse-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  19. Upgrade

    Upgrade redhat/rsyslog-mmkubernetes to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  20. Upgrade

    Upgrade redhat/rsyslog-mmkubernetes-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  21. Upgrade

    Upgrade redhat/rsyslog-mmnormalize to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  22. Upgrade

    Upgrade redhat/rsyslog-mmnormalize-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  23. Upgrade

    Upgrade redhat/rsyslog-mmsnmptrapd to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  24. Upgrade

    Upgrade redhat/rsyslog-mmsnmptrapd-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  25. Upgrade

    Upgrade redhat/rsyslog-mysql to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  26. Upgrade

    Upgrade redhat/rsyslog-mysql-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  27. Upgrade

    Upgrade redhat/rsyslog-omamqp1 to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  28. Upgrade

    Upgrade redhat/rsyslog-omamqp1-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  29. Upgrade

    Upgrade redhat/rsyslog-pgsql to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  30. Upgrade

    Upgrade redhat/rsyslog-pgsql-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  31. Upgrade

    Upgrade redhat/rsyslog-relp to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  32. Upgrade

    Upgrade redhat/rsyslog-relp-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  33. Upgrade

    Upgrade redhat/rsyslog-snmp to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  34. Upgrade

    Upgrade redhat/rsyslog-snmp-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  35. Upgrade

    Upgrade redhat/rsyslog-udpspoof to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5
  36. Upgrade

    Upgrade redhat/rsyslog-udpspoof-debuginfo to a version that resolves this vulnerability.

    Fixed in 8.1911.0-7.el8_4.5

Event History

Nov 5, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·02:09 PM
Data Sourced
via Red Hat·02:09 PM
Severity

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