CVE-2025-22870

Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be proxied.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.4 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
GoCNA
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CVEADP
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CISA-ADPADP
4.4 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
Debian logo
Debian Releases
Debian Product
Codename
golang-1.15
bullseye
vulnerable
bookworm
no-dsa
golang-1.19
bookworm
vulnerable
bullseye
postponed
golang-1.23
sid
1.23.7-1
fixed
trixie
1.23.7-1
fixed
bookworm
no-dsa
bullseye
postponed
golang-1.24
sid
1.24.1-1
fixed
trixie
1.24.1-1
fixed
bookworm
no-dsa
bullseye
postponed
Common Weakness Enumeration
References
https://go.dev/cl/654697
https://go.dev/issue/71984
https://pkg.go.dev/vuln/GO-2025-3503
http://www.openwall.com/lists/oss-security/2025/03/07/2