{"cve":"CVE-2025-22870","nvd":{"published":"2025-03-12T19:15:38.310","modified":"2026-06-17T08:50:40.640","status":"Deferred","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","score":4.4},"cwes":["CWE-115"],"references":["https://go.dev/cl/654697","https://go.dev/issue/71984","https://groups.google.com/g/golang-announce/c/4t3lzH3I0eI/m/b42ImqrBAQAJ","https://pkg.go.dev/vuln/GO-2025-3503","http://www.openwall.com/lists/oss-security/2025/03/07/2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:00:17.429720821+00:00"},"epss":{"cve":"CVE-2025-22870","score":0.00425,"percentile":0.36788,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qxp5-gwg8-xv66","url":"https://osv.dev/vulnerability/GHSA-qxp5-gwg8-xv66","summary":"HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net","modified":"2026-09-10T03:50:23.280114085Z","packages":[{"ecosystem":"Go","name":"golang.org/x/net","purl":"pkg:golang/golang.org/x/net","ranges":["<0.36.0"],"fixed":["0.36.0"]}]},{"id":"GO-2025-3503","url":"https://osv.dev/vulnerability/GO-2025-3503","summary":"HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net","modified":"2026-04-16T22:45:11.580296Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.23.7",">=1.24.0-0 <1.24.1"],"fixed":["1.23.7","1.24.1"]},{"ecosystem":"Go","name":"golang.org/x/net","purl":"pkg:golang/golang.org/x/net","ranges":["<0.36.0"],"fixed":["0.36.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}