CriticalCritical vulnerability
CVE-2026-105835 (CVSS 9.1)
NVD · officialPublished Oct 6, 2026Risk 50/100
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.
Technical details
CVSS
9.1
AV:NetworkAC:HighPR:NoneUI:None
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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