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crypto/x509: Incorrect enforcement of email constraints in crypto/x509

🗓️ 03 Jun 2026 19:03:32Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 11 Views

Go crypto/x509 validation flaw: email constraints with same local part but different domains are not enforced; only the last applies.

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Red Hat Enterprise Linux10.2s390ximage-builder52.1-1.el10_2image-builder-52.1-1.el10_2.s390x.rpm
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Red Hat Enterprise Linux10.2aarch64image-builder-debuginfo52.1-1.el10_2image-builder-debuginfo-52.1-1.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64leimage-builder-debuginfo52.1-1.el10_2image-builder-debuginfo-52.1-1.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390ximage-builder-debuginfo52.1-1.el10_2image-builder-debuginfo-52.1-1.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64image-builder-debuginfo52.1-1.el10_2image-builder-debuginfo-52.1-1.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64image-builder-debugsource52.1-1.el10_2image-builder-debugsource-52.1-1.el10_2.aarch64.rpm
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30 Jul 2026 10:03Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
EPSS0.00606
SSVC
CWE-295
go x509certificate validationemail constraintsmultiple constraintsdomain portionslast constraint applies
11