{"id":"CVE-2026-105835","aliases":["EUVD-2026-93379","GHSA-vxgr-w3f5-4g4j"],"status":"published","title":"PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","severity":{"version":"4.0","score":9.1,"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00317,"percentile":0.24963,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-307"],"published":"2026-10-06T12:57:55Z","modified":"2026-10-28T02:30:59Z","products":[{"vendor":"planka","product":"planka"}],"references":[{"url":"https://github.com/plankanban/planka/commit/de4d7688317829e2a0b665fe9dbf39eaf127b6f9","tags":["patch","fix"]},{"url":"https://github.com/plankanban/planka/blob/v2.2.1/server/api/controllers/access-tokens/verify-totp.js","tags":["technical-description","article"]},{"url":"https://github.com/plankanban/planka","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/planka-2.2.0-through-2.2.1-totp-brute-force-via-verify-totp-endpoint","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105835","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vxgr-w3f5-4g4j"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105835.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-105835","title":"PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","status":"published","published":"2026-10-06T12:57:55.187Z","modified":"2026-10-09T00:58:23.881Z","cvss":[{"version":"4.0","score":9.1,"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","level":"critical","assessor":"cna"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-93379","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","status":"published","published":"2026-10-06T12:57:55Z","modified":"2026-10-09T00:58:23Z","cvss":[{"version":"4.0","score":9.1,"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","level":"critical"}],"updated_at":"2026-11-02T17:27:25.942984Z"}],"ghsa":[{"id":"GHSA-vxgr-w3f5-4g4j","title":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access...","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","status":"published","published":"2026-10-06T15:31:56Z","modified":"2026-10-06T15:31:56Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"},{"version":"4.0","score":9.1,"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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T15:12:50.930323Z"}],"nvd":[{"id":"CVE-2026-105835","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","status":"published","published":"2026-10-06T13:16:46.76Z","modified":"2026-10-09T02:16:55.38Z","cvss":[{"version":"4.0","score":9.1,"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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T14:12:54.486849Z"}],"osv":[{"id":"CVE-2026-105835","title":"PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint","description":"PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to guess six-digit codes until one succeeds, obtaining a full access token.","status":"published","published":"2026-10-06T12:57:55.187Z","modified":"2026-10-28T02:30:59.731254868Z","cvss":[{"version":"4.0","score":9.1,"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","level":"critical"}],"cwes":["CWE-307"],"updated_at":"2026-11-02T15:44:54.583213Z"}]}}