CVE-2025-61727

medium

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://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

Details

Source: Mitre, NVD

Published: 2025-12-03

Updated: 2025-12-04

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00016