CVE-2026-92802

Description

kan through 0.6.0 fails to properly validate board creation permissions in the GitHub project import endpoint, allowing guests to create boards despite lacking board:create permission. Attackers can bypass authorization checks by using the importProjects mutation to create boards while remaining blocked on direct creation paths.

References

• https://github.com/kanbn/kan
• https://github.com/kanbn/kan/blob/f08920d/packages/api/src/routers/import.ts#L259
• https://github.com/kanbn/kan/blob/v0.6.0/packages/api/src/routers/import.ts#L622-L670
• https://github.com/kanbn/kan/issues/628
• https://www.vulncheck.com/advisories/kan-through-0.6.0-authorization-bypass-via-github-project-import