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

🗓️ 18 Mar 2026 10:44:01Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 8 Views

Go x509 HostnameError.Error() can cause DoS from crafted certificate via string concatenation.

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Refs
ReporterTitlePublishedViews
Family
RedhatCVE		CVE-2025-61729
11 Dec 202504:50
–redhatcve
RedHat Linux		Important: Red Hat Security Advisory: grafana security update
5 Mar 202612:15
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202612:15
–redhat
RedHat Linux		Important: Red Hat Security Advisory: grafana security update
5 Mar 202612:20
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202612:20
–redhat
RedHat Linux		Important: Red Hat Security Advisory: Red Hat OpenShift GitOps v1.19.2 security update
5 Mar 202612:07
–redhat
RedHat Linux		Important: Red Hat Security Advisory: OpenShift Container Platform 4.18.35 bug fix and security update
11 Mar 202604:27
–redhat
RedHat Linux		Important: Red Hat Security Advisory: git-lfs security update
5 Mar 202616:42
–redhat
RedHat Linux		crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate
5 Mar 202616:42
–redhat
RedHat Linux		Important: Red Hat Security Advisory: git-lfs security update
5 Mar 202617:28
–redhat
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.0aarch64rhc1:0.3.2-2.el10_0rhc-1:0.3.2-2.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lerhc1:0.3.2-2.el10_0rhc-1:0.3.2-2.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xrhc1:0.3.2-2.el10_0rhc-1:0.3.2-2.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64rhc1:0.3.2-2.el10_0rhc-1:0.3.2-2.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64rhc-debuginfo1:0.3.2-2.el10_0rhc-debuginfo-1:0.3.2-2.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lerhc-debuginfo1:0.3.2-2.el10_0rhc-debuginfo-1:0.3.2-2.el10_0.ppc64le.rpm
Red Hat Enterprise Linux10.0s390xrhc-debuginfo1:0.3.2-2.el10_0rhc-debuginfo-1:0.3.2-2.el10_0.s390x.rpm
Red Hat Enterprise Linux10.0x86_64rhc-debuginfo1:0.3.2-2.el10_0rhc-debuginfo-1:0.3.2-2.el10_0.x86_64.rpm
Red Hat Enterprise Linux10.0aarch64rhc-debugsource1:0.3.2-2.el10_0rhc-debugsource-1:0.3.2-2.el10_0.aarch64.rpm
Red Hat Enterprise Linux10.0ppc64lerhc-debugsource1:0.3.2-2.el10_0rhc-debugsource-1:0.3.2-2.el10_0.ppc64le.rpm
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19 Jul 2026 06:15Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.5
EPSS0.00459
SSVC
CWE-1050
certificate error handlingdenial of servicehostname errorunbounded concatenationgo language vulnerability
8