CVE-2026-105835: critical vulnerability in planka
PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint
Published
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.3%
exploitation probability
0.3%top 77% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
planka · plankaReferences
https://github.com/plankanban/plankahttps://github.com/plankanban/planka/blob/v2.2.1/server/api/controllers/access-tokens/verify-totp.jshttps://github.com/plankanban/planka/commit/de4d7688317829e2a0b665fe9dbf39eaf127b6f9https://www.vulncheck.com/advisories/planka-2.2.0-through-2.2.1-totp-brute-force-via-verify-totp-endpoint