CVE-2026-119079

CVSS 7.5 (high) · published 2026-11-09

decode_sequence_of() in lib/krb5/asn.1/asn1_encode.c in MIT Kerberos 5 (aka krb5) 1.11 and later grows the decoded element array one entry at a time, which allows remote attackers to cause a denial of service (CPU consumption in the KDC) by sending an unauthenticated AS-REQ or TGS-REQ with a large number of elements in a SEQUENCE OF field over TCP.

Weakness: CWE-408

Source: NVD CVE-2026-119079

References

• https://access.redhat.com/errata/RHSA-2026:97811
• https://access.redhat.com/errata/RHSA-2026:99624
• https://access.redhat.com/errata/RHSA-2026:99625
• https://access.redhat.com/errata/RHSA-2026:99715
• https://access.redhat.com/errata/RHSA-2026:99716
• https://access.redhat.com/security/cve/CVE-2026-119079
• https://bugzilla.redhat.com/show_bug.cgi?id=2479231
• https://bugzilla.redhat.com/show_bug.cgi?id=2479231

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.