Bug 2445344 (CVE-2026-27138) - CVE-2026-27138 crypto/x509: Panic in name constraint checking for malformed certificates in crypto/x509
Summary: CVE-2026-27138 crypto/x509: Panic in name constraint checking for malformed c...
Keywords:
Status: NEW
Alias: CVE-2026-27138
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2446046
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-06 22:01 UTC by OSIDB Bzimport
Modified: 2026-03-10 16:55 UTC (History)
6 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-03-06 22:01:58 UTC 
Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.
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