Bug 2445345 (CVE-2026-27137) - CVE-2026-27137 crypto/x509: Incorrect enforcement of email constraints in crypto/x509
Summary: CVE-2026-27137 crypto/x509: Incorrect enforcement of email constraints in cry...
Keywords:
Status: NEW
Alias: CVE-2026-27137
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: 2446047
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-06 22:02 UTC by OSIDB Bzimport
Modified: 2026-08-06 07:35 UTC (History)
138 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 RHSA-2026:10169 0 None None None 2026-04-23 17:46:11 UTC
Red Hat Product Errata RHSA-2026:10929 0 None None None 2026-04-27 13:50:41 UTC
Red Hat Product Errata RHSA-2026:19022 0 None None None 2026-05-19 13:02:53 UTC
Red Hat Product Errata RHSA-2026:19049 0 None None None 2026-05-19 13:06:45 UTC
Red Hat Product Errata RHSA-2026:19132 0 None None None 2026-05-19 16:05:28 UTC
Red Hat Product Errata RHSA-2026:19181 0 None None None 2026-05-19 17:59:55 UTC
Red Hat Product Errata RHSA-2026:22450 0 None None None 2026-06-02 11:08:26 UTC
Red Hat Product Errata RHSA-2026:22714 0 None None None 2026-06-03 08:00:55 UTC
Red Hat Product Errata RHSA-2026:22937 0 None None None 2026-06-03 18:49:44 UTC
Red Hat Product Errata RHSA-2026:23228 0 None None None 2026-06-04 13:10:46 UTC
Red Hat Product Errata RHSA-2026:28038 0 None None None 2026-06-22 20:28:12 UTC
Red Hat Product Errata RHSA-2026:36796 0 None None None 2026-07-08 15:49:54 UTC
Red Hat Product Errata RHSA-2026:39810 0 None None None 2026-07-15 09:53:38 UTC
Red Hat Product Errata RHSA-2026:41019 0 None None None 2026-07-16 14:31:06 UTC
Red Hat Product Errata RHSA-2026:8842 0 None None None 2026-04-20 00:34:17 UTC

Description OSIDB Bzimport 2026-03-06 22:02:01 UTC 
When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.
Comment 8 errata-xmlrpc 2026-04-20 00:34:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:8842 https://access.redhat.com/errata/RHSA-2026:8842
Comment 9 errata-xmlrpc 2026-04-23 17:46:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:10169 https://access.redhat.com/errata/RHSA-2026:10169
Comment 10 errata-xmlrpc 2026-04-27 13:50:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:10929 https://access.redhat.com/errata/RHSA-2026:10929
Comment 13 errata-xmlrpc 2026-05-19 13:02:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19022 https://access.redhat.com/errata/RHSA-2026:19022
Comment 14 errata-xmlrpc 2026-05-19 13:06:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19049 https://access.redhat.com/errata/RHSA-2026:19049
Comment 15 errata-xmlrpc 2026-05-19 16:05:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19132 https://access.redhat.com/errata/RHSA-2026:19132
Comment 16 errata-xmlrpc 2026-05-19 17:59:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19181 https://access.redhat.com/errata/RHSA-2026:19181
Comment 17 errata-xmlrpc 2026-06-02 11:08:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22450 https://access.redhat.com/errata/RHSA-2026:22450
Comment 18 errata-xmlrpc 2026-06-03 08:00:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22714 https://access.redhat.com/errata/RHSA-2026:22714
Comment 19 errata-xmlrpc 2026-06-03 18:49:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22937 https://access.redhat.com/errata/RHSA-2026:22937
Comment 20 errata-xmlrpc 2026-06-04 13:10:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:23228 https://access.redhat.com/errata/RHSA-2026:23228
Comment 21 errata-xmlrpc 2026-06-22 20:28:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:28038 https://access.redhat.com/errata/RHSA-2026:28038
Comment 22 errata-xmlrpc 2026-07-08 15:49:46 UTC 
This issue has been addressed in the following products:

  RHEM 1.0 for RHEL 9

Via RHSA-2026:36796 https://access.redhat.com/errata/RHSA-2026:36796
Comment 23 errata-xmlrpc 2026-07-15 09:53:32 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Services on OpenShift 18.0

Via RHSA-2026:39810 https://access.redhat.com/errata/RHSA-2026:39810
Comment 24 Mirco Geremia 2026-07-15 14:12:38 UTC 
Added rhem-1.1/flightctl affect and tracker. This stream was missing affects for this CVE since it went GA after the triage, but it's still vulnerable.
Comment 25 errata-xmlrpc 2026-07-16 14:30:59 UTC 
This issue has been addressed in the following products:

  RHEM 1.1 for RHEL 10
  RHEM 1.1 for RHEL 9

Via RHSA-2026:41019 https://access.redhat.com/errata/RHSA-2026:41019
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