Authorization Bypass Through User-Controlled Key Affecting kanboard package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.48% (40th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-KANBOARD-17496188
  • published26 Jun 2026
  • disclosed25 Jun 2026

Introduced: 25 Jun 2026

CVE-2026-56774  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable kanboard.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kanboard package and not the kanboard package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Kanboard through 1.2.52, fixed in commit 928c68a, UserViewController::removeSession fails to validate the session id parameter before passing it to RememberMeSessionModel::remove, allowing authenticated users to delete other users' Remember Me sessions. Attackers can enumerate sequential session IDs and mass-invalidate persistent login sessions of any user, including administrators, forcing re-authentication and causing denial of service.

CVSS Base Scores

version 3.1