CVE-2026-105835: Planka

High severity, CVSS 7.4. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Planka Planka: from 2.2.0, up to and including 2.2.1

Published 2026-10-06. Last modified 2026-10-09.