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

🗓️ 20 May 2026 11:57:59Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 12 Views

Flaw in crypto/tls permits certificate validation bypass on TLS session resumption when CA settings change.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64podman5:5.2.2-11.rhaos4.18.el8podman-5:5.2.2-11.rhaos4.18.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepodman5:5.2.2-11.rhaos4.18.el8podman-5:5.2.2-11.rhaos4.18.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xpodman5:5.2.2-11.rhaos4.18.el8podman-5:5.2.2-11.rhaos4.18.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64podman5:5.2.2-11.rhaos4.18.el8podman-5:5.2.2-11.rhaos4.18.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64podman-catatonit5:5.2.2-11.rhaos4.18.el8podman-catatonit-5:5.2.2-11.rhaos4.18.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepodman-catatonit5:5.2.2-11.rhaos4.18.el8podman-catatonit-5:5.2.2-11.rhaos4.18.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xpodman-catatonit5:5.2.2-11.rhaos4.18.el8podman-catatonit-5:5.2.2-11.rhaos4.18.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64podman-catatonit5:5.2.2-11.rhaos4.18.el8podman-catatonit-5:5.2.2-11.rhaos4.18.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64podman-catatonit-debuginfo5:5.2.2-11.rhaos4.18.el8podman-catatonit-debuginfo-5:5.2.2-11.rhaos4.18.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepodman-catatonit-debuginfo5:5.2.2-11.rhaos4.18.el8podman-catatonit-debuginfo-5:5.2.2-11.rhaos4.18.el8.ppc64le.rpm
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14 Jul 2026 02:34Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.19.1 - 10
EPSS0.00765
SSVC
Transport Layer SecurityCertificate AuthoritySession resumptionCertificate validationAuthentication bypass
12