{"id":"CVE-2020-36564","state":"PUBLISHED","title":"Improper input validation in github.com/justinas/nosurf","description":"Due to improper validation of caller input, validation is silently disabled if the provided expected token is malformed, causing any user supplied token to be considered valid.","publishedAt":"2022-12-27T21:13:31.590Z","updatedAt":"2025-04-11T16:26:19.344Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","source":"CISA-ADP"},"assigner":"Go","products":["github.com/justinas/nosurf github.com/justinas/nosurf"],"affected":[{"vendor":"github.com/justinas/nosurf","product":"github.com/justinas/nosurf","packageName":"github.com/justinas/nosurf","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.1.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"VerifyToken"},{"name":"verifyToken"},{"name":"CSRFHandler.ServeHTTP"}]}],"references":["https://github.com/justinas/nosurf/pull/60","https://github.com/justinas/nosurf/commit/4d86df7a4affa1fa50ab39fb09aac56c3ce9c314","https://pkg.go.dev/vuln/GO-2020-0049"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:24.909Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/36xxx/CVE-2020-36564.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-36564","state":"PUBLISHED","datePublished":"2022-12-27T21:13:31.590Z","dateUpdated":"2025-04-11T16:26:19.344Z","assignerShortName":"Go","assignerOrgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateReserved":"2022-07-29T18:39:05.265Z"},"containers":{"cna":{"title":"Improper input validation in github.com/justinas/nosurf","descriptions":[{"lang":"en","value":"Due to improper validation of caller input, validation is silently disabled if the provided expected token is malformed, causing any user supplied token to be considered valid."}],"affected":[{"vendor":"github.com/justinas/nosurf","product":"github.com/justinas/nosurf","packageName":"github.com/justinas/nosurf","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.1.1","versionType":"semver"}],"collectionURL":"https://pkg.go.dev","programRoutines":[{"name":"VerifyToken"},{"name":"verifyToken"},{"name":"CSRFHandler.ServeHTTP"}]}],"references":[{"url":"https://github.com/justinas/nosurf/pull/60"},{"url":"https://github.com/justinas/nosurf/commit/4d86df7a4affa1fa50ab39fb09aac56c3ce9c314"},{"url":"https://pkg.go.dev/vuln/GO-2020-0049"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE 345: Insufficient Verification of Data Authenticity"}]}],"providerMetadata":{"shortName":"Go","orgId":"1bb62c36-49e3-4200-9d77-64a1400537cc","dateUpdated":"2023-06-12T19:04:04.728Z"},"credits":[{"lang":"en","value":"@aeneasr"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/justinas/nosurf/pull/60","tags":["x_transferred"]},{"url":"https://github.com/justinas/nosurf/commit/4d86df7a4affa1fa50ab39fb09aac56c3ce9c314","tags":["x_transferred"]},{"url":"https://pkg.go.dev/vuln/GO-2020-0049","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T17:30:08.463Z"}},{"title":"CISA ADP Vulnrichment","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:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-11T16:25:49.012598Z","id":"CVE-2020-36564","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-11T16:26:19.344Z"}}]}}}