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

🗓️ 16 Jul 2026 14:35:59Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

Golang x509 misapplies multiple email constraints; only the last is used when domains differ.

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Tenable Nessus		Golang 1.26.x < 1.26.1 Multiple Vulnerabilities
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64flightctl-agent1.1.3-1.el9emflightctl-agent-1.1.3-1.el9em.aarch64.rpm
Red Hat Enterprise Linux9ppc64leflightctl-agent1.1.3-1.el9emflightctl-agent-1.1.3-1.el9em.ppc64le.rpm
Red Hat Enterprise Linux9s390xflightctl-agent1.1.3-1.el9emflightctl-agent-1.1.3-1.el9em.s390x.rpm
Red Hat Enterprise Linux9x86_64flightctl-agent1.1.3-1.el9emflightctl-agent-1.1.3-1.el9em.x86_64.rpm
Red Hat Enterprise Linux10aarch64flightctl-agent1.1.3-1.el10emflightctl-agent-1.1.3-1.el10em.aarch64.rpm
Red Hat Enterprise Linux10ppc64leflightctl-agent1.1.3-1.el10emflightctl-agent-1.1.3-1.el10em.ppc64le.rpm
Red Hat Enterprise Linux10s390xflightctl-agent1.1.3-1.el10emflightctl-agent-1.1.3-1.el10em.s390x.rpm
Red Hat Enterprise Linux10x86_64flightctl-agent1.1.3-1.el10emflightctl-agent-1.1.3-1.el10em.x86_64.rpm
Red Hat Enterprise Linux9aarch64flightctl-cli1.1.3-1.el9emflightctl-cli-1.1.3-1.el9em.aarch64.rpm
Red Hat Enterprise Linux9ppc64leflightctl-cli1.1.3-1.el9emflightctl-cli-1.1.3-1.el9em.ppc64le.rpm
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17 Jul 2026 07:25Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.5
EPSS0.00606
SSVC
CWE-295
certificate validationemail constraintsmultiple constraintsx509 modulegolangsecurity flaw
5