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

🗓️ 21 Jan 2026 12:11:33Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 22 Views

Golang DoS via crafted certificate from unbounded string concatenation in HostnameError.Error().

Related
Packages
Refs
ReporterTitlePublishedViews
Family
osv
OSV		CLEANSTART-2026-NI04192 Security fixes for CVE-2025-61729, CVE-2026-1229, CVE-2026-24051, CVE-2026-25679, CVE-2026-25934, CVE-2026-27139, CVE-2026-27142, CVE-2026-33186, ghsa-2464-8j7c-4cjm, ghsa-2x5j-vhc8-9cwm, ghsa-37cx-329c-33x3, ghsa-fv92-fjc5-jj9h, ghsa-p77j-4mvh-x3m3 applied in versions: 3.6.16-r0, 3.6.18-r0, 3.6.18-r1, 3.6.18-r2, 3.7.4-r0
1 Apr 202609:24
–osv
osv
OSV		CLEANSTART-2026-NI96678 Within HostnameError
30 Jan 202615:06
–osv
osv
OSV		CLEANSTART-2026-NK15406 Security fixes in stakater-reloader-fips 1.2.1-r1
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-NL96892 Within HostnameError
30 Jan 202616:31
–osv
osv
OSV		CLEANSTART-2026-NS41924 Within HostnameError
30 Jan 202615:18
–osv
osv
OSV		CLEANSTART-2026-NT30039 Security fixes for CVE-2025-61727, CVE-2025-61729, CVE-2025-61732, CVE-2025-68121, CVE-2026-25680, CVE-2026-25681, CVE-2026-27136, CVE-2026-33811, CVE-2026-33814, CVE-2026-33816, CVE-2026-34986, CVE-2026-39820, CVE-2026-39821, CVE-2026-39823, CVE-2026-39824, CVE-2026-39825, CVE-2026-39826, CVE-2026-39827, CVE-2026-39828, CVE-2026-39829, CVE-2026-39830, CVE-2026-39831, CVE-2026-39832, CVE-2026-39833, CVE-2026-39834, CVE-2026-39835, CVE-2026-39836, CVE-2026-41889, CVE-2026-42499, CVE-2026-42502, CVE-2026-42506, CVE-2026-42508, CVE-2026-4659, CVE-2026-46595, CVE-2026-46597, ghsa-273p-m2cw-6833, ghsa-4c4x-jm2x-pf9j, ghsa-4qg8-fj49-pxjh, ghsa-846p-jg2w-w324, ghsa-fcv2-xgw5-pqxf, ghsa-fphv-w9fq-2525, ghsa-jqc5-w2xx-5vq4, ghsa-whqx-f9j3-ch6m, ghsa-xmrv-pmrh-hhx2 applied in versions: 1.13.3-r0, 1.14.1-r0, 1.14.1-r1, 1.14.1-r2, 1.14.5-r0, 1.14.5-r1
8 Jun 202615:07
–osv
osv
OSV		CLEANSTART-2026-NV50142 Security fixes in gitness 3.3.0-r1
30 Jul 202607:10
–osv
osv
OSV		CLEANSTART-2026-NV78596 Security fixes for CVE-2022-29526, CVE-2025-47907, CVE-2025-58183, CVE-2025-58185, CVE-2025-58187, CVE-2025-58188, CVE-2025-58189, CVE-2025-61723, CVE-2025-61724, CVE-2025-61725, CVE-2025-61726, CVE-2025-61727, CVE-2025-61728, CVE-2025-61729, CVE-2025-61730, CVE-2025-68121, CVE-2026-24515, CVE-2026-25210, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, ghsa-4f99-4q7p-p3gh applied in versions: 0.10-r0, 0.11-r0, 0.11-r2, 0.11-r3, 0.11-r4
1 Apr 202609:32
–osv
osv
OSV		CLEANSTART-2026-NV82543 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate
30 Jan 202616:29
–osv
osv
OSV		CLEANSTART-2026-NX54250 During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions
10 Apr 202601:03
–osv
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.7aarch64go-toolset1.25.5-2.el9_7go-toolset-1.25.5-2.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7ppc64lego-toolset1.25.5-2.el9_7go-toolset-1.25.5-2.el9_7.ppc64le.rpm
Red Hat Enterprise Linux9.7s390xgo-toolset1.25.5-2.el9_7go-toolset-1.25.5-2.el9_7.s390x.rpm
Red Hat Enterprise Linux9.7x86_64go-toolset1.25.5-2.el9_7go-toolset-1.25.5-2.el9_7.x86_64.rpm
Red Hat Enterprise Linux9.7aarch64golang1.25.5-2.el9_7golang-1.25.5-2.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7ppc64legolang1.25.5-2.el9_7golang-1.25.5-2.el9_7.ppc64le.rpm
Red Hat Enterprise Linux9.7s390xgolang1.25.5-2.el9_7golang-1.25.5-2.el9_7.s390x.rpm
Red Hat Enterprise Linux9.7x86_64golang1.25.5-2.el9_7golang-1.25.5-2.el9_7.x86_64.rpm
Red Hat Enterprise Linux9.7aarch64golang-bin1.25.5-2.el9_7golang-bin-1.25.5-2.el9_7.aarch64.rpm
Red Hat Enterprise Linux9.7ppc64legolang-bin1.25.5-2.el9_7golang-bin-1.25.5-2.el9_7.ppc64le.rpm
Rows per page

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20 Aug 2026 15:21Current
7.1High risk
Vulners AI Score7.1
CVSS 3.17.5
EPSS0.00464
SSVC
CWE-1050
go languagedenial of servicecrafted certificateunbounded string concatenationhostname errorcertificate flaw
22