{"id":"CVE-2026-46649","state":"PUBLISHED","title":"Joplin: SSO Auth Code Login Missing Rate Limiting — 9-Digit Numeric Code Brute-Forceable via Unprotected Endpoint","description":"Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Server's GET /api/login_with_code/:id endpoint accepts a nine-digit SSO authentication code with a ten-minute lifetime without applying limiterLoginBruteForce. An unauthenticated attacker who targets a user during an active SSO login can make unlimited guesses, and a correct code returns a full session token that permits access to and modification of the user's notes, notebooks, and account settings. This issue is fixed in version 3.7.2.","publishedAt":"2026-09-21T20:58:04.456Z","updatedAt":"2026-09-28T20:18:49.471Z","severity":{"score":9.1,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["laurent22 joplin"],"affected":[{"vendor":"laurent22","product":"joplin","versions":[{"version":"< 3.7.2","status":"affected"}]}],"references":["https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","https://github.com/laurent22/joplin/pull/15433","https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d","https://github.com/laurent22/joplin/tree/v3.7.2"],"weaknesses":["CWE-307"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46649","state":"PUBLISHED","datePublished":"2026-09-21T20:58:04.456Z","dateUpdated":"2026-09-28T20:18:49.471Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-15T20:11:54.585Z"},"containers":{"cna":{"title":"Joplin: SSO Auth Code Login Missing Rate Limiting — 9-Digit Numeric Code Brute-Forceable via Unprotected Endpoint","descriptions":[{"lang":"en","value":"Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Server's GET /api/login_with_code/:id endpoint accepts a nine-digit SSO authentication code with a ten-minute lifetime without applying limiterLoginBruteForce. An unauthenticated attacker who targets a user during an active SSO login can make unlimited guesses, and a correct code returns a full session token that permits access to and modification of the user's notes, notebooks, and account settings. This issue is fixed in version 3.7.2."}],"affected":[{"vendor":"laurent22","product":"joplin","versions":[{"version":"< 3.7.2","status":"affected"}]}],"references":[{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","name":"https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/laurent22/joplin/pull/15433","name":"https://github.com/laurent22/joplin/pull/15433","tags":["x_refsource_MISC"]},{"url":"https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d","name":"https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d","tags":["x_refsource_MISC"]},{"url":"https://github.com/laurent22/joplin/tree/v3.7.2","name":"https://github.com/laurent22/joplin/tree/v3.7.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-307","lang":"en","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-21T20:58:04.456Z"},"source":{"advisory":"GHSA-6vwc-4hrg-qp5h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-28T20:18:43.323006Z","id":"CVE-2026-46649","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-28T20:18:49.471Z"}}]}}}