4.3Medium
CVE-2026-92802
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.
What this means for your business
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
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Scoring
- CVSS
- 4.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- CVSS v4
- 5.3
- Weakness
- CWE-862
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-16
- Last modified
- 2026-09-17
- Sources
- NVD
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