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: 2026-05-14 06:38 UTC (History)
129 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-2026:8842 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
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