CVE-2026-105835

PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint

Published Oct 6, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 9, 2026, 12:58 AM
Reserved
Oct 5, 2026, 10:00 PM
Status
Deferred
Published
Oct 6, 2026, 1:16 PM
Modified
Oct 9, 2026, 2:16 AM