CVE-2026-82239 Budibase before 3.41.3 Authorization Bypass via datasources/query
Low-privilege users can bypass table-level access controls to read, create, update, or delete data in any table via the query API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82239?
CVE-2026-82239 is a high-severity missing authorization vulnerability in budibase server, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Budibase before 3.41.3 fails to enforce per-table role restrictions on the POST /api/datasources/query endpoint, allowing low-privilege BASIC users to read, create, update, or delete rows in any table regardless of configured permissions. Attackers with BASIC role can submit crafted query requests with target table identifiers to bypass table-level access controls and manipulate restricted data.
Weakness: CWE-862
Which versions are affected by CVE-2026-82239?
How do I fix CVE-2026-82239?
No fix has been published for CVE-2026-82239 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-82239 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82239 exists.
Sources
Also known as GHSA-7q8g-4mpg-9gfm, GHSA-vq3j-xwg3-pg8x.