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.
Published: 2026-10-06
Score: 9.1 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

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'}

Subscriptions

Planka Planka
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

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

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

Link: CVE-2026-105835

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-105835

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-307

    Improper Restriction of Excessive Authentication Attempts