{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-47908","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","state":"PUBLISHED","assignerShortName":"Go","dateReserved":"2025-05-13T23:31:29.597Z","datePublished":"2025-08-06T20:41:31.311Z","dateUpdated":"2025-08-07T13:47:15.232Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","shortName":"Go","dateUpdated":"2025-08-06T20:41:31.311Z"},"title":"Denial of service via malicious preflight requests in github.com/rs/cors","descriptions":[{"lang":"en","value":"Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service."}],"affected":[{"vendor":"github.com/rs/cors","product":"github.com/rs/cors","collectionURL":"https://pkg.go.dev","packageName":"github.com/rs/cors","versions":[{"version":"1.9.0","lessThan":"1.11.0","status":"affected","versionType":"semver"}],"programRoutines":[{"name":"Cors.handlePreflight"},{"name":"Cors.areHeadersAllowed"},{"name":"New"},{"name":"splitHeaderValues"},{"name":"AllowAll"},{"name":"Cors.HandlerFunc"},{"name":"Cors.ServeHTTP"},{"name":"Default"}],"defaultStatus":"unaffected"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-1325: Improperly Controlled Sequential Memory Allocation"}]}],"references":[{"url":"https://github.com/rs/cors/pull/171"},{"url":"https://github.com/rs/cors/issues/170"},{"url":"https://pkg.go.dev/vuln/GO-2024-2883"}],"credits":[{"lang":"en","value":"@jub0bs"}]},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-08-07T13:46:29.844868Z","id":"CVE-2025-47908","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-08-07T13:47:15.232Z"}}]}}