Quick answers
- Is CVE-2026-33712 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-33712 being exploited in the wild.
- How severe is CVE-2026-33712?
- Critical severity, with a CVSS score of 10, published 22 May 2026.
- Which products and versions are affected?
- baptisteArno typebot.io <= 3.15.2.
- Is there a fix for CVE-2026-33712?
- A patch was published on 2026-04-08: Version 3.16.0 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-33712 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-33712?
- Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A critical vulnerability exists in Typebot's preview chat endpoint (POST /api/v1/typebots/{typebotId}/preview/startChat) due to a combination of missing authorization and insufficient input validation. The `getTypebot` function in the bot engine skips authentication checks when a custom typebot object is provided in the request. Furthermore, the `fetch` function exposed within the `isolated-vm` sandbox environment lacks the `validateHttpReqUrl` checks used elsewhere in the application. An unauthenticated attacker can submit a crafted typebot definition containing server-side code blocks that use this unrestricted `fetch` to access internal network resources or cloud metadata services (e.g., AWS IMDS). This bypasses previous SSRF mitigations and has been addressed in version 3.16.0.
Affected products
- baptisteArno typebot.io <= 3.15.2
Timeline
- 2026-04-08: patched: Version 3.16.0 released
- 2026-05-22: disclosed: GitHub Security Advisory published
- 2026-05-22: advisory: NVD published CVE-2026-33712