Vulnerability · Published Aug 11, 2026 · Assigned by GitHub_M

CVE-2026-48765TypeBot vulnerable to cross-workspace OAuth credential takeover in updateOAuthCredentials via missing object binding

Critical 9.9

In plain English

A critical-severity authorization bypass via user-controlled key in typebot.io from baptisteArno. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)0.5%top 60.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
baptisteArno	typebot.io	< 3.17.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

References

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-3788-7276-x4j4 x_refsource_CONFIRM
https://github.com/baptisteArno/typebot.io/pull/2459 x_refsource_MISC
https://github.com/baptisteArno/typebot.io/commit/7ae4c007d0987d2ca907b47e1b7418db62b8a157 x_refsource_MISC
https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0 x_refsource_MISC