CVE-2025-61727

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
GoCNA
---
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CISA-ADPADP
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
golang-1.15
bullseye
vulnerable
bookworm
no-dsa
golang-1.19
bookworm
vulnerable
golang-1.24
trixie
vulnerable
bookworm
no-dsa
forky
vulnerable
sid
vulnerable
golang-1.25
forky
vulnerable
sid
vulnerable
bookworm
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
golang-1.24
questing
needs-triage
plucky
needs-triage
noble
dne
jammy
dne
golang-1.25
questing
needs-triage
plucky
dne
noble
dne
jammy
dne
Vulnerability Media Exposure
References
https://go.dev/cl/723900
https://go.dev/issue/76442
https://groups.google.com/g/golang-announce/c/8FJoBkPddm4
https://pkg.go.dev/vuln/GO-2025-4175