CVE-2026-105835

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

HIGH
7.4
CVSS Score
Published: October 6, 2026 at 12:57 PM UTC
Updated: October 9, 2026 at 02:16 AM UTC
2 products affected across 2 vendorsPlankaPlanka

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Severity
HIGH7.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.2.0 ≤ v ≤ 2.2.12.2.0
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-307

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