CVE-2026-82242 Budibase before 3.41.3 Cross-Application Resource Injection via Missing Authorization

High 8.3 Published Updated

Authenticated builders can inject resources into unauthorized applications, enabling data exfiltration via webhooks.

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-2026-82242?

CVE-2026-82242 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 versions before 3.41.3 contain a missing authorization vulnerability in the POST /api/resources/duplicate endpoint that allows authenticated builders to inject tables, automations, queries, and screens into any other application without holding any role in the destination workspace. Attackers can inject resources by specifying an arbitrary destination workspace ID in the request body, then trigger injected automations with outgoing webhooks to exfiltrate data from victim applications.

Weakness: CWE-862

Which versions are affected by CVE-2026-82242?

How do I fix CVE-2026-82242?

No fix has been published for CVE-2026-82242 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-2026-82242 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82242 exists.

Sources

Also known as GHSA-x7cc-r52j-8mj8, GHSA-xqpq-288m-r5q7.

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