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.
History

Fri, 09 Oct 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 06 Oct 2026 13:15:00 +0000

Type Values Removed Values Added
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.
Title PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint
First Time appeared Planka
Planka planka
Weaknesses CWE-307
CPEs cpe:2.3:a:planka:planka:*:*:*:*:*:*:*:*
Vendors & Products Planka
Planka planka
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-06T12:57:55.187Z

Updated: 2026-10-09T00:58:23.881Z

Reserved: 2026-10-05T22:00:10.841Z

Link: CVE-2026-105835

cve-icon Vulnrichment

Updated: 2026-10-09T00:58:19.861Z

cve-icon NVD

Status : Deferred

Published: 2026-10-06T13:16:46.760

Modified: 2026-10-09T02:16:55.380

Link: CVE-2026-105835

cve-icon Redhat

No data.