{"id":"CVE-2026-46649","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-46649","generatedAt":"2026-10-28T03:27:30.793Z","title":"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.","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.","published":"2026-09-21T21:17:03.000Z","lastModified":"2026-09-28T21:17:18.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":9.1,"severity":"CRITICAL","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-307"],"affected":[],"epss":{"score":0.005,"percentile":0.42589,"date":"2026-10-26","history":[{"date":"2026-09-22","score":0.00379,"percentile":0.31798}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-21T21:17:03.000Z","detail":{"score":"9.1","severity":"CRITICAL","publishedAt":"2026-09-21T21:17:03.323Z"},"summary":"New CVE, critical severity (CVSS 9.1)."}],"references":[{"url":"https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d","source":"security-advisories@github.com"},{"url":"https://github.com/laurent22/joplin/pull/15433","source":"security-advisories@github.com"},{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","source":"security-advisories@github.com"},{"url":"https://github.com/laurent22/joplin/tree/v3.7.2","source":"security-advisories@github.com"},{"url":"https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46649","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}