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crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

🗓️ 20 May 2026 03:59:13Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 13 Views

Crypto/tls flaw lets certificate validation bypass during session resumption if CA settings change.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.6aarch64osbuild-composer0:132.2-6.el9_6osbuild-composer-0:132.2-6.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64leosbuild-composer0:132.2-6.el9_6osbuild-composer-0:132.2-6.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xosbuild-composer0:132.2-6.el9_6osbuild-composer-0:132.2-6.el9_6.s390x.rpm
Red Hat Enterprise Linux9.6x86_64osbuild-composer0:132.2-6.el9_6osbuild-composer-0:132.2-6.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64osbuild-composer-core0:132.2-6.el9_6osbuild-composer-core-0:132.2-6.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64leosbuild-composer-core0:132.2-6.el9_6osbuild-composer-core-0:132.2-6.el9_6.ppc64le.rpm
Red Hat Enterprise Linux9.6s390xosbuild-composer-core0:132.2-6.el9_6osbuild-composer-core-0:132.2-6.el9_6.s390x.rpm
Red Hat Enterprise Linux9.6x86_64osbuild-composer-core0:132.2-6.el9_6osbuild-composer-core-0:132.2-6.el9_6.x86_64.rpm
Red Hat Enterprise Linux9.6aarch64osbuild-composer-core-debuginfo0:132.2-6.el9_6osbuild-composer-core-debuginfo-0:132.2-6.el9_6.aarch64.rpm
Red Hat Enterprise Linux9.6ppc64leosbuild-composer-core-debuginfo0:132.2-6.el9_6osbuild-composer-core-debuginfo-0:132.2-6.el9_6.ppc64le.rpm
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12 Jul 2026 02:27Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.19.1 - 10
EPSS0.00765
SSVC
certificate validationsession resumptioncertificate authority settingsauthentication bypasssecurity vulnerability
13