CVE-2026-19654
Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
02 Description
Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can allow an unauthenticated remote peer to crash rsyslogd
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.56% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 46.6% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-21.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-12 20:46Z2 MO AGO
- Last updated
- 2026-10-21 20:58Z7 DAYS AGO
- Reserved
- 2026-08-12
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-125Out-of-bounds ReadBase
- Data version
- 5.2
- Document digest
- 0dca45236b9f347790c6b45dee0b3eb6d0a6065fcc0fce595619dd3a48aa23b8
05 Affected products
06 References
- access.redhat.comRHSA-2026:66405https://access.redhat.com/errata/RHSA-2026:66405
- access.redhat.comRHSA-2026:67583https://access.redhat.com/errata/RHSA-2026:67583
- access.redhat.comRHSA-2026:67584https://access.redhat.com/errata/RHSA-2026:67584
- access.redhat.comRHSA-2026:71603https://access.redhat.com/errata/RHSA-2026:71603
- access.redhat.comRHSA-2026:80817https://access.redhat.com/errata/RHSA-2026:80817
- access.redhat.comRHSA-2026:84571https://access.redhat.com/errata/RHSA-2026:84571
- access.redhat.comRHSA-2026:84576https://access.redhat.com/errata/RHSA-2026:84576
- access.redhat.comRHSA-2026:86124https://access.redhat.com/errata/RHSA-2026:86124
- access.redhat.comRHSA-2026:87408https://access.redhat.com/errata/RHSA-2026:87408
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-19654
- bugzilla.redhat.comRHBZ#2502868https://bugzilla.redhat.com/show_bug.cgi?id=2502868
- github.comhttps://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29
07 Fixed in
AlmaLinux 8
- rsyslog Fixed in 8.2102.0-15.el8_10.3
- rsyslog-crypto Fixed in 8.2102.0-15.el8_10.3
- rsyslog-doc Fixed in 8.2102.0-15.el8_10.3
- rsyslog-elasticsearch Fixed in 8.2102.0-15.el8_10.3
- rsyslog-gnutls Fixed in 8.2102.0-15.el8_10.3
- rsyslog-gssapi Fixed in 8.2102.0-15.el8_10.3
- rsyslog-kafka Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmaudit Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmfields Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmjsonparse Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmkubernetes Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmnormalize Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmsnmptrapd Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mysql Fixed in 8.2102.0-15.el8_10.3
- rsyslog-omamqp1 Fixed in 8.2102.0-15.el8_10.3
- rsyslog-openssl Fixed in 8.2102.0-15.el8_10.3
- rsyslog-pgsql Fixed in 8.2102.0-15.el8_10.3
- rsyslog-relp Fixed in 8.2102.0-15.el8_10.3
- rsyslog-snmp Fixed in 8.2102.0-15.el8_10.3
- rsyslog-udpspoof Fixed in 8.2102.0-15.el8_10.3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- rsyslog Fixed in 8.2510.0-2.el9_8.1
- rsyslog-crypto Fixed in 8.2510.0-2.el9_8.1
- rsyslog-doc Fixed in 8.2510.0-2.el9_8.1
- rsyslog-elasticsearch Fixed in 8.2510.0-2.el9_8.1
- rsyslog-gnutls Fixed in 8.2510.0-2.el9_8.1
- rsyslog-gssapi Fixed in 8.2510.0-2.el9_8.1
- rsyslog-kafka Fixed in 8.2510.0-2.el9_8.1
- rsyslog-logrotate Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmaudit Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmfields Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmjsonparse Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmkubernetes Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmnormalize Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmsnmptrapd Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mysql Fixed in 8.2510.0-2.el9_8.1
- rsyslog-omamqp1 Fixed in 8.2510.0-2.el9_8.1
- rsyslog-openssl Fixed in 8.2510.0-2.el9_8.1
- rsyslog-pgsql Fixed in 8.2510.0-2.el9_8.1
- rsyslog-relp Fixed in 8.2510.0-2.el9_8.1
- rsyslog-snmp Fixed in 8.2510.0-2.el9_8.1
- rsyslog-udpspoof Fixed in 8.2510.0-2.el9_8.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- rsyslog Fixed in 8.2510.0-5.el10_2.1
- rsyslog-crypto Fixed in 8.2510.0-5.el10_2.1
- rsyslog-doc Fixed in 8.2510.0-5.el10_2.1
- rsyslog-elasticsearch Fixed in 8.2510.0-5.el10_2.1
- rsyslog-gnutls Fixed in 8.2510.0-5.el10_2.1
- rsyslog-gssapi Fixed in 8.2510.0-5.el10_2.1
- rsyslog-kafka Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmaudit Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmfields Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmjsonparse Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmkubernetes Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmnormalize Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmsnmptrapd Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mysql Fixed in 8.2510.0-5.el10_2.1
- rsyslog-omamqp1 Fixed in 8.2510.0-5.el10_2.1
- rsyslog-openssl Fixed in 8.2510.0-5.el10_2.1
- rsyslog-pgsql Fixed in 8.2510.0-5.el10_2.1
- rsyslog-relp Fixed in 8.2510.0-5.el10_2.1
- rsyslog-snmp Fixed in 8.2510.0-5.el10_2.1
- rsyslog-udpspoof Fixed in 8.2510.0-5.el10_2.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- rsyslog Fixed in 8.2102.0-15.el8_10.3
- rsyslog-crypto Fixed in 8.2102.0-15.el8_10.3
- rsyslog-doc Fixed in 8.2102.0-15.el8_10.3
- rsyslog-elasticsearch Fixed in 8.2102.0-15.el8_10.3
- rsyslog-gnutls Fixed in 8.2102.0-15.el8_10.3
- rsyslog-gssapi Fixed in 8.2102.0-15.el8_10.3
- rsyslog-kafka Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmaudit Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmfields Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmjsonparse Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmkubernetes Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmnormalize Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mmsnmptrapd Fixed in 8.2102.0-15.el8_10.3
- rsyslog-mysql Fixed in 8.2102.0-15.el8_10.3
- rsyslog-omamqp1 Fixed in 8.2102.0-15.el8_10.3
- rsyslog-openssl Fixed in 8.2102.0-15.el8_10.3
- rsyslog-pgsql Fixed in 8.2102.0-15.el8_10.3
- rsyslog-relp Fixed in 8.2102.0-15.el8_10.3
- rsyslog-snmp Fixed in 8.2102.0-15.el8_10.3
- rsyslog-udpspoof Fixed in 8.2102.0-15.el8_10.3
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- rsyslog Fixed in 8.2510.0-2.el9_8.1
- rsyslog-crypto Fixed in 8.2510.0-2.el9_8.1
- rsyslog-doc Fixed in 8.2510.0-2.el9_8.1
- rsyslog-elasticsearch Fixed in 8.2510.0-2.el9_8.1
- rsyslog-gnutls Fixed in 8.2510.0-2.el9_8.1
- rsyslog-gssapi Fixed in 8.2510.0-2.el9_8.1
- rsyslog-kafka Fixed in 8.2510.0-2.el9_8.1
- rsyslog-logrotate Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmaudit Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmfields Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmjsonparse Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmkubernetes Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmnormalize Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mmsnmptrapd Fixed in 8.2510.0-2.el9_8.1
- rsyslog-mysql Fixed in 8.2510.0-2.el9_8.1
- rsyslog-omamqp1 Fixed in 8.2510.0-2.el9_8.1
- rsyslog-openssl Fixed in 8.2510.0-2.el9_8.1
- rsyslog-pgsql Fixed in 8.2510.0-2.el9_8.1
- rsyslog-relp Fixed in 8.2510.0-2.el9_8.1
- rsyslog-snmp Fixed in 8.2510.0-2.el9_8.1
- rsyslog-udpspoof Fixed in 8.2510.0-2.el9_8.1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- rsyslog Fixed in 8.2510.0-5.el10_2.1
- rsyslog-crypto Fixed in 8.2510.0-5.el10_2.1
- rsyslog-doc Fixed in 8.2510.0-5.el10_2.1
- rsyslog-elasticsearch Fixed in 8.2510.0-5.el10_2.1
- rsyslog-gnutls Fixed in 8.2510.0-5.el10_2.1
- rsyslog-gssapi Fixed in 8.2510.0-5.el10_2.1
- rsyslog-kafka Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmaudit Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmfields Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmjsonparse Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmkubernetes Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmnormalize Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mmsnmptrapd Fixed in 8.2510.0-5.el10_2.1
- rsyslog-mysql Fixed in 8.2510.0-5.el10_2.1
- rsyslog-omamqp1 Fixed in 8.2510.0-5.el10_2.1
- rsyslog-openssl Fixed in 8.2510.0-5.el10_2.1
- rsyslog-pgsql Fixed in 8.2510.0-5.el10_2.1
- rsyslog-relp Fixed in 8.2510.0-5.el10_2.1
- rsyslog-snmp Fixed in 8.2510.0-5.el10_2.1
- rsyslog-udpspoof Fixed in 8.2510.0-5.el10_2.1
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- rsyslog No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- rsyslog Fixed in 8.2504.0-1+deb13u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- rsyslog Fixed in 8.2608.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- rsyslog No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- rsyslog Fixed in 8.2112.0-2ubuntu2.4
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- rsyslog Fixed in 8.2312.0-3ubuntu9.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- rsyslog Fixed in 8.2512.0-1ubuntu4.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- rsyslog No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- rsyslog No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- rsyslog No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.