CVE-2026-48765 TypeBot vulnerable to cross-workspace OAuth credential takeover in updateOAuthCredentials via missing object binding
A low-privilege collaborator can hijack OAuth credentials across workspaces by exploiting missing object binding in the credential update logic.
- 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-2026-48765?
CVE-2026-48765 is a critical missing authorization vulnerability in baptisteArno typebot.io, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
TypeBot is a chatbot builder tool. Versions prior to 3.17.0 allow a low-privilege read collaborator to extract a workspace OAuth `credentialsId` from a readable bot configuration and then overwrite that credential through `handleUpdateOAuthCredentials()` by supplying an attacker-controlled writable `workspaceId`. The update path validates only the attacker-supplied workspace and then updates the credential record by global `id` alone, while also rewriting the credential's `workspaceId`. This allows cross-workspace OAuth credential takeover and reassignment. Version 3.17.0 patches the issue.
Weakness: CWE-639
Which versions are affected by CVE-2026-48765?
How do I fix CVE-2026-48765?
No fix has been published for CVE-2026-48765 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-2026-48765 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48765 exists.
Sources
Also known as GHSA-3788-7276-x4j4.