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: 2026-06-29 15:07 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
Red Hat Product Errata RHSA-2026:26409 0 None None None 2026-06-16 16:39:26 UTC
Red Hat Product Errata RHSA-2026:30004 0 None None None 2026-06-25 18:07:37 UTC
Red Hat Product Errata RHSA-2026:30849 0 None None None 2026-06-29 02:48:33 UTC
Red Hat Product Errata RHSA-2026:30850 0 None None None 2026-06-29 02:30:18 UTC
Red Hat Product Errata RHSA-2026:32962 0 None None None 2026-06-29 09:47:23 UTC
Red Hat Product Errata RHSA-2026:33125 0 None None None 2026-06-29 15:07:32 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
Comment 10 errata-xmlrpc 2026-06-16 16:39:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:26409 https://access.redhat.com/errata/RHSA-2026:26409
Comment 12 errata-xmlrpc 2026-06-25 18:07:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:30004 https://access.redhat.com/errata/RHSA-2026:30004
Comment 13 errata-xmlrpc 2026-06-29 02:30:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:30850 https://access.redhat.com/errata/RHSA-2026:30850
Comment 14 errata-xmlrpc 2026-06-29 02:48:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:30849 https://access.redhat.com/errata/RHSA-2026:30849
Comment 15 errata-xmlrpc 2026-06-29 09:47:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:32962 https://access.redhat.com/errata/RHSA-2026:32962
Comment 16 errata-xmlrpc 2026-06-29 15:07:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:33125 https://access.redhat.com/errata/RHSA-2026:33125
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