CVE-2026-105835
PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint
planka planka
CVSS
9.1CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
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.
Text from CVE List
Affected versions 1
- plankaaffected: 2.2.0 through 2.2.1CVE List
References 4
- github.com/plankanban/planka/commit/de4d7688317829e2a0b665fe9dbf39eaf127b6f9Fixvia CVE List
- vulncheck.com/advisories/planka-2.2.0-through-2.2.1-totp-brute-force-via-verify-totp-endpointAdvisoryvia CVE List
- github.com/plankanban/planka/blob/v2.2.1/server/api/controllers/access-tokens/verify-totp.jsReferencevia CVE List
- github.com/plankanban/plankaReferencevia CVE List