Bug 2563453 (CVE-2026-71199) - CVE-2026-71199 krb5: Alteration of authentication indicators in CAMMAC container
Summary: CVE-2026-71199 krb5: Alteration of authentication indicators in CAMMAC container
Keywords:
Status: NEW
Alias: CVE-2026-71199
Deadline: 2026-11-09
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2569305
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-29 16:09 UTC by OSIDB Bzimport
Modified: 2026-11-10 08:30 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-29 16:09:32 UTC 
In MIT krb5 release 1.14 and later (since authentication indicator support was added), an authenticated attacker can bypass authentication indicator requirements using an unkeyed checksum in the CAMMAC authdata container.
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