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crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries

🗓️ 04 Jun 2026 12:43:59Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

DoS in crypto x509 VerifyHostname caused by domain name subject alternative name entries.

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MINI-PH2F-2XG3-FF8Q
5 Jun 202613:03
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64golang1.261.26.4-2.hum1golang1.26-1.26.4-2.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64golang1.261.26.4-2.hum1golang1.26-1.26.4-2.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchgolang1.26-docs1.26.4-2.hum1golang1.26-docs-1.26.4-2.hum1.noarch.rpm

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24 Jul 2026 12:53Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.5
EPSS0.00591
SSVC
3