by Kastro
Paper/Archive/CVE-2026-48765

CVE-2026-48765

baptisteArno typebot.io — TypeBot vulnerable to cross-workspace OAuth credential takeover in updateOAuthCredentials via missing object binding

EPSS 0.5%public exploitCVSS 9.9
critical.is priorityof 100
48
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 39.6.396 × 207.9Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
typebot.io< 3.17.0–CNA

Scores by source

GitHub_M (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/baptisteArno/typebot.io/security/advisories/GHSA-3788-7276-x4j4refgithub.com/baptisteArno/typebot.io/pull/2459refgithub.com/baptisteArno/typebot.io/commit/7ae4c007d0987d2ca907b47e1b7418db62b8a157refgithub.com/baptisteArno/typebot.io/releases/tag/v3.17.0