CVSS 4.0
9.1 criticalCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NCVE-2026-46649
Critical (9.1). EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
- CWE
- CWE-307
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d
- https://github.com/laurent22/joplin/pull/15433
- https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h
- https://github.com/laurent22/joplin/tree/v3.7.2
- https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h