Bug 2467437 (CVE-2026-42011) - CVE-2026-42011 gnutls: gnutls: Security bypass due to incorrect name constraint handling
Summary: CVE-2026-42011 gnutls: gnutls: Security bypass due to incorrect name constrai...
Keywords:
Status: NEW
Alias: CVE-2026-42011
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 19:07 UTC by OSIDB Bzimport
Modified: 2026-06-02 08:27 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2026:20910 0 None None None 2026-05-26 12:26:59 UTC
Red Hat Product Errata RHBA-2026:20937 0 None None None 2026-05-26 15:25:12 UTC
Red Hat Product Errata RHSA-2026:20611 0 None None None 2026-05-26 06:15:32 UTC
Red Hat Product Errata RHSA-2026:20612 0 None None None 2026-05-26 06:20:09 UTC
Red Hat Product Errata RHSA-2026:20613 0 None None None 2026-05-26 06:18:01 UTC

Description OSIDB Bzimport 2026-05-06 19:07:55 UTC 
libgnutls: Fix intersecting empty constraints
   Permitted name constraints were wrongfully ignored
   when prior CAs only had excluded name constraints,
   resulting in a name constraint bypass.
   Reported by .
Comment 2 errata-xmlrpc 2026-05-26 06:15:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:20611 https://access.redhat.com/errata/RHSA-2026:20611
Comment 3 errata-xmlrpc 2026-05-26 06:18:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:20613 https://access.redhat.com/errata/RHSA-2026:20613
Comment 4 errata-xmlrpc 2026-05-26 06:20:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:20612 https://access.redhat.com/errata/RHSA-2026:20612
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