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CVE-2026-105835— PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint

Quick assessment

Affected
planka planka
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在版本 2.2.0 至 2.2.1 的 PLANKA 中，POST /api/access-tokens/verify-totp 接口未对提交的错误 TOTP（基于时间的一次性密码）进行数量限制，导致攻击者可以暴力破解二次认证代码。如果攻击者已知某用户的密码，他们可以重复使用等待期内的十分钟有效令牌，对六位数字的一次性密码进行穷举尝试，直到成功获取完整的访问令牌。

CVSS 7.4 · High
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I. Basic Information for CVE-2026-105835

Vulnerability Information
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Vulnerability Title
PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
planka planka 2.2.0 ~ 2.2.1 -

II. Public POCs for CVE-2026-105835

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III. Intelligence Information for CVE-2026-105835

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Other References for CVE-2026-105835 (4)

IV. Related Vulnerabilities

Same weakness: CWE-307

V. Comments for CVE-2026-105835

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