{"id":"CVE-2026-32246","state":"PUBLISHED","title":"Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint","description":"Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC authorization endpoint allows users with a TOTP-pending session (password verified, TOTP not yet completed) to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. This vulnerability is fixed in 5.0.3.","publishedAt":"2026-03-12T18:59:20.875Z","updatedAt":"2026-03-12T20:46:24.238Z","severity":{"score":8.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["steveiliop56 tinyauth"],"affected":[{"vendor":"steveiliop56","product":"tinyauth","versions":[{"version":"< 5.0.3","status":"affected"}]}],"references":["https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32246.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32246","state":"PUBLISHED","datePublished":"2026-03-12T18:59:20.875Z","dateUpdated":"2026-03-12T20:46:24.238Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-11T14:47:05.685Z"},"containers":{"cna":{"title":"Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint","descriptions":[{"lang":"en","value":"Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC authorization endpoint allows users with a TOTP-pending session (password verified, TOTP not yet completed) to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. This vulnerability is fixed in 5.0.3."}],"affected":[{"vendor":"steveiliop56","product":"tinyauth","versions":[{"version":"< 5.0.3","status":"affected"}]}],"references":[{"url":"https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39","name":"https://github.com/steveiliop56/tinyauth/security/advisories/GHSA-3q28-qjrv-qr39","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-12T18:59:20.875Z"},"source":{"advisory":"GHSA-3q28-qjrv-qr39","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-12T20:43:38.639462Z","id":"CVE-2026-32246","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-12T20:46:24.238Z"}}]}}}