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crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate

🗓️ 20 May 2026 13:36:25Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 18 Views

Crafted certificate causes denial of service in Go's HostnameError.Error() due to unbounded string concatenation.

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Refs
ReporterTitlePublishedViews
Family
RedhatCVE		CVE-2025-61729
11 Dec 202504:50
–redhatcve
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202609:44
–redhat
RedHat Linux		Important: Red Hat Security Advisory: image-builder security update
5 Mar 202610:11
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202610:11
–redhat
RedHat Linux		Important: Red Hat Security Advisory: image-builder security update
5 Mar 202609:44
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202609:44
–redhat
RedHat Linux		Important: Red Hat Security Advisory: grafana security update
5 Mar 202609:37
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202609:37
–redhat
RedHat Linux		Important: Red Hat Security Advisory: delve security update
5 Mar 202609:56
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202609:56
–redhat
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64podman5:5.2.2-18.rhaos4.17.el8podman-5:5.2.2-18.rhaos4.17.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepodman5:5.2.2-18.rhaos4.17.el8podman-5:5.2.2-18.rhaos4.17.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xpodman5:5.2.2-18.rhaos4.17.el8podman-5:5.2.2-18.rhaos4.17.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64podman5:5.2.2-18.rhaos4.17.el8podman-5:5.2.2-18.rhaos4.17.el8.x86_64.rpm
Red Hat Enterprise Linux9aarch64podman5:5.2.2-18.rhaos4.17.el9podman-5:5.2.2-18.rhaos4.17.el9.aarch64.rpm
Red Hat Enterprise Linux9ppc64lepodman5:5.2.2-18.rhaos4.17.el9podman-5:5.2.2-18.rhaos4.17.el9.ppc64le.rpm
Red Hat Enterprise Linux9s390xpodman5:5.2.2-18.rhaos4.17.el9podman-5:5.2.2-18.rhaos4.17.el9.s390x.rpm
Red Hat Enterprise Linux9x86_64podman5:5.2.2-18.rhaos4.17.el9podman-5:5.2.2-18.rhaos4.17.el9.x86_64.rpm
Red Hat Enterprise Linux8aarch64podman-catatonit5:5.2.2-18.rhaos4.17.el8podman-catatonit-5:5.2.2-18.rhaos4.17.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lepodman-catatonit5:5.2.2-18.rhaos4.17.el8podman-catatonit-5:5.2.2-18.rhaos4.17.el8.ppc64le.rpm
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22 Jul 2026 11:22Current
7.1High risk
Vulners AI Score7.1
CVSS 3.17.5
EPSS0.00459
SSVC
CWE-1050
crafted certificatehostname errordenial of serviceresource consumptionerror handlingstring concatenation
18