PoC Index

CVE-2025-22870

MEDIUM 4.4EPSS 0.4%

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.

CVSS v3.1
4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CVSS v3.1
4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
EPSS
0.40% chance of exploitation in the next 30 days, 33th percentile
Published
2025-03-12
Updated
2026-04-16

Proof-of-concept exploits (1)

References

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