Vulnerability · Published Feb 13, 2026 · Assigned by GitHub_M
CVE-2026-25531Kanboard TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects
Medium 4.3
In plain English
A medium-severity missing authorization in kanboard from kanboard. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Kanboard is project management software focused on Kanban methodology. Prior to 1.2.50, The fix for CVE-2023-33968 is incomplete. The TaskCreationController::duplicateProjects() endpoint does not validate user permissions for target projects, allowing authenticated users to duplicate tasks into projects they cannot access. This vulnerability is fixed in 1.2.50.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | kanboard | 1.2.50+ds-1 | DEBIAN-CVE-2026-25531 |
| Ubuntu:22.04:LTS | kanboard-cli | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:24.04:LTS | kanboard-cli | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:22.04:LTS | python-kanboard | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:24.04:LTS | python-kanboard | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:25.10 | python-kanboard | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:26.04:LTS | python-kanboard | no fix listed | UBUNTU-CVE-2026-25531 |
| Ubuntu:26.10 | python-kanboard | no fix listed | UBUNTU-CVE-2026-25531 |
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N