CVE-2026-105835 Planka - Authentication Bypass

Planka 2.2.0 through 2.2.1 contains a broken authentication caused by failure to limit incorrect TOTP codes on POST /api/access-tokens/verify-totp, letting attackers brute force two-factor authentication codes, exploit requires attacker to know user password and reuse pending token.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-307

Vendor fix

Update to a version later than 2.2.1 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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