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Security Advisories

CVE-2025-61727

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-61727

Severity

6.5

Medium

CVSS V3

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Description

An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-61727
  • https://github.com/advisories/GHSA-5mh9-3jwc-rp59
  • https://pkg.go.dev/vuln/GO-2025-4175
  • https://groups.google.com/g/golang-announce/c/8FJoBkPddm4
  • https://go.dev/issue/76442
  • https://go.dev/cl/723900

Affected packages

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