CVE-2026-19654

Name
CVE-2026-19654
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
secalert@redhat.com https://access.redhat.com/security/cve/CVE-2026-19654
secalert@redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2502868
secalert@redhat.com https://github.com/rsyslog/rsyslog/security/advisories/GHSA-cj5r-wh2m-7w29
secalert@redhat.com https://access.redhat.com/errata/RHSA-2026:66405

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:rsyslog:rsyslog:*:*:*:*:*:*:*:* rsyslog >= 8.36.0 < 8.2608.0
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* enterprise_linux == None == 6.0
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* enterprise_linux == None == 7.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* enterprise_linux == None == 8.0
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* enterprise_linux == None == 9.0
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* enterprise_linux == None == 10.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
rsyslog edge-main 8.2604.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2512.0-r4 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2512.0-r3 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2512.0-r2 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2512.0-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2512.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog edge-main 8.2506.0-r1 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.2506.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.2504.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.2410.0-r1 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.2410.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.2204.1-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog edge-main 8.1908.0-r1 None possibly vulnerable
rsyslog 3.24-main 8.2604.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog 3.23-main 8.2512.0-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog 3.23-main 8.2512.0-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
rsyslog 3.23-main 8.2506.0-r1 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog 3.22-main 8.2410.0-r1 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog 3.22-main 8.2204.1-r0 None possibly vulnerable
rsyslog 3.22-main 8.1908.0-r1 None possibly vulnerable
rsyslog 3.21-main 8.2410.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog 3.21-main 8.2204.1-r0 None possibly vulnerable
rsyslog 3.21-main 8.1908.0-r1 None possibly vulnerable
rsyslog 3.20-main 8.2404.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog 3.20-main 8.2204.1-r0 None possibly vulnerable
rsyslog 3.20-main 8.1908.0-r1 None possibly vulnerable
rsyslog 3.19-main 8.2310.0-r0 Cameron Banta <cbanta@gmail.com> possibly vulnerable
rsyslog 3.19-main 8.2204.1-r0 None possibly vulnerable
rsyslog 3.19-main 8.1908.0-r1 None possibly vulnerable