{"id":"CVE-2026-57574","state":"PUBLISHED","title":"Misskey: TOTP tokens can be reused","description":"Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If both credentials and a TOTP code are obtained concurrently, an attacker may reuse the code to perform unauthorized actions, potentially leading to account takeover. This issue is fixed in version 2026.6.0.","publishedAt":"2026-07-10T20:55:49.896Z","updatedAt":"2026-07-13T18:55:15.968Z","severity":{"score":7.4,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["misskey-dev misskey"],"affected":[{"vendor":"misskey-dev","product":"misskey","versions":[{"version":"< 2026.6.0","status":"affected"}]}],"references":["https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq","https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6","https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7","https://github.com/misskey-dev/misskey/releases/tag/2026.6.0"],"weaknesses":["CWE-294"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57574.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57574","state":"PUBLISHED","datePublished":"2026-07-10T20:55:49.896Z","dateUpdated":"2026-07-13T18:55:15.968Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-24T18:49:56.208Z"},"containers":{"cna":{"title":"Misskey: TOTP tokens can be reused","descriptions":[{"lang":"en","value":"Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If both credentials and a TOTP code are obtained concurrently, an attacker may reuse the code to perform unauthorized actions, potentially leading to account takeover. This issue is fixed in version 2026.6.0."}],"affected":[{"vendor":"misskey-dev","product":"misskey","versions":[{"version":"< 2026.6.0","status":"affected"}]}],"references":[{"url":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq","name":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6","name":"https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6","tags":["x_refsource_MISC"]},{"url":"https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7","name":"https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7","tags":["x_refsource_MISC"]},{"url":"https://github.com/misskey-dev/misskey/releases/tag/2026.6.0","name":"https://github.com/misskey-dev/misskey/releases/tag/2026.6.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.4,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-294","lang":"en","description":"CWE-294: Authentication Bypass by Capture-replay","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-10T20:55:49.896Z"},"source":{"advisory":"GHSA-2m5x-5mp6-6vpq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-13T18:33:16.735830Z","id":"CVE-2026-57574","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-13T18:55:15.968Z"}}]}}}