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crypto/x509: Panic in name constraint checking for malformed certificates in crypto/x509

🗓️ 09 Apr 2026 11:00:43Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Panic in name constraint checks in crypto/x509 for chains with an empty domain name and excluded constraints.

Related
Packages
Refs
ReporterTitlePublishedViews
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IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container operator and IntegrationRuntime & IntegrationServer operands are vulnerable to loss of confidentiality (CVE-2026-27137) and denial of service (CVE-2026-27138)
1 May 202616:57
–ibm
IBM Security Bulletins		Security Bulletin: IBM Instana Observability is affected by multiple vulnerabilities within Instana Agent container image
26 May 202606:03
–ibm
ATTACKERKB		CVE-2026-27138
6 Mar 202621:28
–attackerkb
AlpineLinux		CVE-2026-27138
6 Mar 202621:28
–alpinelinux
BDU FSTEC		The vulnerability of the Go programming language, related to errors in the certificate validation process, allows a perpetrator to cause service failures.
27 Mar 202600:00
–bdu_fstec
CBLMariner		CVE-2026-27138 affecting package golang for versions less than 1.25.8-1
13 Mar 202619:01
–cbl_mariner
CBLMariner		CVE-2026-27138 affecting package golang for versions less than 1.26.1-1
13 Mar 202619:01
–cbl_mariner
Chainguard		CVE-2026-27138 vulnerabilities
10 Mar 202619:18
–cgr
Circl		CVE-2026-27138
6 Mar 202601:19
–circl
CNNVD		Google Go 安全漏洞
6 Mar 202600:00
–cnnvd
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64golang1.261.26.2-1.hum1golang1.26-1.26.2-1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64golang1.261.26.2-1.hum1golang1.26-1.26.2-1.hum1.x86_64.rpm
Red Hat Hardened Imagesanynoarchgolang1.26-docs1.26.2-1.hum1golang1.26-docs-1.26.2-1.hum1.noarch.rpm

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24 Jul 2026 15:34Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.15.9
EPSS0.0035
SSVC
CWE-295
certificate verificationname constraintsempty domain namemalformed certificatespanic vulnerabilitycertificate chain
3