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RLSA-2026:69540

Security Mirrored from RHSA-2026:69540
Issued at: 2026-09-24
Updated at: 2026-09-24

Advisory content derived from Red Hat RHSA-2026:69540, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: rsyslog security update



Description

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: 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.



Affected products

Rocky Linux 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2521135

CVEs

CVE-2026-78002

Affected packages

Rocky Linux 9 aarch64 - AppStream

rsyslog-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-0:8.2510.0-2.el9_8.2.src.rpm rsyslog-crypto-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-crypto-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-debugsource-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-doc-0:8.2510.0-2.el9_8.2.noarch.rpm rsyslog-elasticsearch-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-elasticsearch-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-gnutls-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-gnutls-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-gssapi-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-gssapi-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-kafka-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-kafka-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-logrotate-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmaudit-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmaudit-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmfields-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmfields-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmjsonparse-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmjsonparse-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmkubernetes-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmkubernetes-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmnormalize-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmnormalize-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmsnmptrapd-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mmsnmptrapd-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mysql-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-mysql-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-omamqp1-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-omamqp1-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-openssl-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-openssl-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-pgsql-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-pgsql-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-relp-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-relp-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-snmp-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-snmp-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-udpspoof-0:8.2510.0-2.el9_8.2.aarch64.rpm rsyslog-udpspoof-debuginfo-0:8.2510.0-2.el9_8.2.aarch64.rpm

Rocky Linux 9 ppc64le - AppStream

rsyslog-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-0:8.2510.0-2.el9_8.2.src.rpm rsyslog-crypto-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-crypto-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-debugsource-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-doc-0:8.2510.0-2.el9_8.2.noarch.rpm rsyslog-elasticsearch-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-elasticsearch-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-gnutls-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-gnutls-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-gssapi-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-gssapi-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-kafka-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-kafka-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-logrotate-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmaudit-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmaudit-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmfields-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmfields-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmjsonparse-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmjsonparse-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmkubernetes-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmkubernetes-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmnormalize-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmnormalize-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmsnmptrapd-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mmsnmptrapd-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mysql-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-mysql-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-omamqp1-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-omamqp1-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-openssl-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-openssl-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-pgsql-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-pgsql-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-relp-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-relp-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-snmp-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-snmp-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-udpspoof-0:8.2510.0-2.el9_8.2.ppc64le.rpm rsyslog-udpspoof-debuginfo-0:8.2510.0-2.el9_8.2.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

rsyslog-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-0:8.2510.0-2.el9_8.2.src.rpm rsyslog-crypto-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-crypto-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-debugsource-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-doc-0:8.2510.0-2.el9_8.2.noarch.rpm rsyslog-elasticsearch-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-elasticsearch-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-gnutls-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-gnutls-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-gssapi-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-gssapi-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-kafka-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-kafka-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-logrotate-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmaudit-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmaudit-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmfields-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmfields-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmjsonparse-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmjsonparse-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmkubernetes-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmkubernetes-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmnormalize-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmnormalize-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmsnmptrapd-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mmsnmptrapd-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mysql-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-mysql-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-omamqp1-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-omamqp1-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-openssl-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-openssl-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-pgsql-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-pgsql-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-relp-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-relp-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-snmp-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-snmp-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-udpspoof-0:8.2510.0-2.el9_8.2.s390x.rpm rsyslog-udpspoof-debuginfo-0:8.2510.0-2.el9_8.2.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

rsyslog-0:8.2510.0-2.el9_8.2.src.rpm rsyslog-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-crypto-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-crypto-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-debugsource-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-doc-0:8.2510.0-2.el9_8.2.noarch.rpm rsyslog-elasticsearch-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-elasticsearch-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-gnutls-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-gnutls-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-gssapi-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-gssapi-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-kafka-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-kafka-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-logrotate-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmaudit-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmaudit-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmfields-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmfields-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmjsonparse-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmjsonparse-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmkubernetes-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmkubernetes-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmnormalize-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmnormalize-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmsnmptrapd-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mmsnmptrapd-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mysql-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-mysql-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-omamqp1-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-omamqp1-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-openssl-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-openssl-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-pgsql-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-pgsql-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-relp-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-relp-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-snmp-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-snmp-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-udpspoof-0:8.2510.0-2.el9_8.2.x86_64.rpm rsyslog-udpspoof-debuginfo-0:8.2510.0-2.el9_8.2.x86_64.rpm