Bug 2480688 (CVE-2026-42508) - CVE-2026-42508 golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey
Summary: CVE-2026-42508 golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypt...
Keywords:
Status: NEW
Alias: CVE-2026-42508
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2489773
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-22 04:02 UTC by OSIDB Bzimport
Modified: 2026-06-23 10:38 UTC (History)
56 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-05-22 04:02:12 UTC 
Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.
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