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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade rsyslog-udpspoofUpgrade rsyslog-mmfieldsUpgrade rsyslog-snmpUpgrade rsyslog-mmauditUpgrade rsyslog-omamqp1Upgrade rsyslog-mmkubernetesUpgrade rsyslog-gssapiUpgrade rsyslog-pgsqlUpgrade rsyslog-kafkaUpgrade rsyslog-docUpgrade rsyslogUpgrade rsyslog-mysqlUpgrade rsyslog-elasticsearchUpgrade rsyslog-gnutlsUpgrade rsyslog-logrotateUpgrade rsyslog-mmnormalizeUpgrade rsyslog-relpUpgrade rsyslog-mmsnmptrapdUpgrade rsyslog-mmjsonparseUpgrade rsyslog-cryptoUpgrade rsyslog-openssl | Oct 11, 2026 | Sep 15, 2026 |
| Amazon_linux_2023 | — | Upgrade rsyslog-mmnormalize-debuginfoUpgrade rsyslog-mmauditUpgrade rsyslog-opensslUpgrade rsyslog-mmjsonparseUpgrade rsyslog-elasticsearch-debuginfoUpgrade rsyslog-mmfieldsUpgrade rsyslog-mmnormalizeUpgrade rsyslogUpgrade rsyslog-mmjsonparse-debuginfoUpgrade rsyslog-cryptoUpgrade rsyslog-mmkubernetesUpgrade rsyslog-mmtaghostname-debuginfoUpgrade rsyslog-mmkubernetes-debuginfoUpgrade rsyslog-openssl-debuginfoUpgrade rsyslog-mmfields-debuginfoUpgrade rsyslog-elasticsearchUpgrade rsyslog-debuginfoUpgrade rsyslog-logrotateUpgrade rsyslog-mmtaghostnameUpgrade rsyslog-debugsourceUpgrade rsyslog-mmaudit-debuginfoUpgrade rsyslog-crypto-debuginfoUpgrade rsyslog-doc | Sep 1, 2026 | Aug 12, 2026 |
| Debian | — | Upgrade rsyslog | Sep 21, 2026 | Aug 12, 2026 |
| Oracle_linux | — | Upgrade rsyslog-relpUpgrade rsyslog-snmpUpgrade rsyslog-elasticsearchUpgrade rsyslog-mmsnmptrapdUpgrade rsyslog-docUpgrade rsyslog-mmjsonparseUpgrade rsyslog-udpspoofUpgrade rsyslog-kafkaUpgrade rsyslog-pgsqlUpgrade rsyslog-mmfieldsUpgrade rsyslog-omamqp1Upgrade rsyslog-mmauditUpgrade rsyslog-logrotateUpgrade rsyslog-cryptoUpgrade rsyslog-gssapiUpgrade rsyslog-opensslUpgrade rsyslogUpgrade rsyslog-mmkubernetesUpgrade rsyslog-mmnormalizeUpgrade rsyslog-mysqlUpgrade rsyslog-gnutls | Oct 22, 2026 | Aug 12, 2026 |
| Redhat_linux | — | Upgrade rsyslog-omamqp1-debuginfoUpgrade rsyslog-elasticsearch-debuginfoUpgrade rsyslog-omamqp1Upgrade rsyslogUpgrade rsyslog-mmfieldsUpgrade rsyslog-docUpgrade rsyslog-gssapiUpgrade rsyslog-kafkaUpgrade rsyslog-udpspoof-debuginfoUpgrade rsyslog-mmnormalize-debuginfoUpgrade rsyslog-mmnormalizeUpgrade rsyslog-snmp-debuginfoUpgrade rsyslog-mysql-debuginfoUpgrade rsyslog-mysqlUpgrade rsyslog-mmfields-debuginfoUpgrade rsyslog-cryptoUpgrade rsyslog-mmaudit-debuginfoUpgrade rsyslog-kafka-debuginfoUpgrade rsyslog-pgsql-debuginfoUpgrade rsyslog-mmsnmptrapd-debuginfoUpgrade rsyslog-udpspoofUpgrade rsyslog-relp-debuginfoUpgrade rsyslog-gnutls-debuginfoUpgrade rsyslog-relpUpgrade rsyslog-mmkubernetesUpgrade rsyslog-mmjsonparseUpgrade rsyslog-gnutlsUpgrade rsyslog-debuginfoUpgrade rsyslog-gssapi-debuginfoUpgrade rsyslog-debugsourceUpgrade rsyslog-mmauditUpgrade rsyslog-mmkubernetes-debuginfoUpgrade rsyslog-crypto-debuginfoUpgrade rsyslog-openssl-debuginfoUpgrade rsyslog-logrotateUpgrade rsyslog-snmpUpgrade rsyslog-mmjsonparse-debuginfoUpgrade rsyslog-pgsqlUpgrade rsyslog-elasticsearchUpgrade rsyslog-mmsnmptrapdUpgrade rsyslog-openssl | Aug 17, 2026 | Jul 22, 2026 |
| Rocky_linux | — | Upgrade rsyslog-mmnormalize-debuginfoUpgrade rsyslog-mmsnmptrapd-debuginfoUpgrade rsyslog-mmnormalizeUpgrade rsyslog-pgsqlUpgrade rsyslog-mmkubernetesUpgrade rsyslog-relpUpgrade rsyslog-pgsql-debuginfoUpgrade rsyslog-mmauditUpgrade rsyslog-mmfields-debuginfoUpgrade rsyslog-mysql-debuginfoUpgrade rsyslog-gssapiUpgrade rsyslog-openssl-debuginfoUpgrade rsyslog-mysqlUpgrade rsyslog-opensslUpgrade rsyslog-elasticsearchUpgrade rsyslog-logrotateUpgrade rsyslog-snmp-debuginfoUpgrade rsyslog-crypto-debuginfoUpgrade rsyslog-udpspoofUpgrade rsyslog-gnutlsUpgrade rsyslog-omamqp1Upgrade rsyslog-mmkubernetes-debuginfoUpgrade rsyslog-mmsnmptrapdUpgrade rsyslog-debuginfoUpgrade rsyslog-kafkaUpgrade rsyslog-debugsourceUpgrade rsyslog-mmfieldsUpgrade rsyslog-mmjsonparse-debuginfoUpgrade rsyslog-udpspoof-debuginfoUpgrade rsyslog-mmjsonparseUpgrade rsyslog-gssapi-debuginfoUpgrade rsyslogUpgrade rsyslog-mmaudit-debuginfoUpgrade rsyslog-omamqp1-debuginfoUpgrade rsyslog-cryptoUpgrade rsyslog-snmpUpgrade rsyslog-kafka-debuginfoUpgrade rsyslog-relp-debuginfoUpgrade rsyslog-gnutls-debuginfoUpgrade rsyslog-elasticsearch-debuginfo | Sep 18, 2026 | Sep 16, 2026 |
| Ubuntu | — | Upgrade rsyslog | Aug 18, 2026 | Aug 13, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 28, 2026 | Aug 12, 2026 |
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