{"id":"CVE-2025-47910","state":"PUBLISHED","title":"CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http","description":"When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections.","publishedAt":"2025-09-22T21:01:55.440Z","updatedAt":"2025-09-24T13:29:45.405Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"Go","products":["Go standard library net/http"],"affected":[{"vendor":"Go standard library","product":"net/http","packageName":"net/http","defaultStatus":"unaffected","versions":[{"version":"1.25.0","status":"affected","lessThan":"1.25.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"CrossOriginProtection.AddInsecureBypassPattern"}]}],"references":["https://go.dev/cl/699275","https://go.dev/issue/75054","https://groups.google.com/g/golang-announce/c/PtW9VW21NPs/m/DJhMQ-m5AQAJ","https://pkg.go.dev/vuln/GO-2025-3955"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/47xxx/CVE-2025-47910.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-47910","state":"PUBLISHED","datePublished":"2025-09-22T21:01:55.440Z","dateUpdated":"2025-09-24T13:29:45.405Z","assignerShortName":"Go","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateReserved":"2025-05-13T23:31:29.597Z"},"containers":{"cna":{"title":"CrossOriginProtection insecure bypass patterns not limited to exact matches in net/http","descriptions":[{"lang":"en","value":"When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections."}],"affected":[{"vendor":"Go standard library","product":"net/http","packageName":"net/http","defaultStatus":"unaffected","versions":[{"version":"1.25.0","status":"affected","lessThan":"1.25.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"CrossOriginProtection.AddInsecureBypassPattern"}]}],"references":[{"url":"https://go.dev/cl/699275"},{"url":"https://go.dev/issue/75054"},{"url":"https://groups.google.com/g/golang-announce/c/PtW9VW21NPs/m/DJhMQ-m5AQAJ"},{"url":"https://pkg.go.dev/vuln/GO-2025-3955"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-284: Improper Access Control"}]}],"providerMetadata":{"shortName":"Go","orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateUpdated":"2025-09-22T21:01:55.440Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.4,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-09-24T13:29:38.364534Z","id":"CVE-2025-47910","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-09-24T13:29:45.405Z"}}]}}}