CVE-2026-48767 Google Sheets OAuth access token disclosure to guest members via getAccessToken
Low-privilege guest members can obtain live Google Sheets OAuth access tokens, allowing unauthorized access to workspace data.
- 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-2026-48767?
CVE-2026-48767 is a high-severity 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 guest member of a workspace to obtain a live Google Sheets OAuth access token for that workspace by calling the Google Sheets helper `getAccessToken`. The vulnerable path checks only whether the caller has read access to the workspace, decrypts the stored Google OAuth credential, refreshes or retrieves the access token through the Google client, and returns the raw bearer token directly to the caller. Because guest members can also enumerate credential identifiers, a guest can mint and reuse the workspace's Google access token outside Typebot. Version 3.17.0 patches the issue.
Weakness: CWE-200
Which versions are affected by CVE-2026-48767?
How do I fix CVE-2026-48767?
No fix has been published for CVE-2026-48767 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-48767 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48767 exists.
Sources
Also known as GHSA-qjpp-9cqc-jhh8.