VulnerabilityAnalyzed
CVE-2025-61727
An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate.
MEDIUM 6.5EPSS 0.28%
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.28% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- golang/go
- Source
- security@golang.org
References
- https://go.dev/cl/723900Patch
- https://go.dev/issue/76442Issue Tracking
- https://groups.google.com/g/golang-announce/c/8FJoBkPddm4Mailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2025-4175Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.