Quick answers
- Is CVE-2026-62861 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-62861 being exploited in the wild.
- How severe is CVE-2026-62861?
- Informational severity, with a CVSS score of 0, published 25 August 2026.
- Which products and versions are affected?
- Typebot before 3.18.0.
- Is there a fix for CVE-2026-62861?
- A patch was published on 2026-06-27: Fix commit merged, released in v3.18.0 on 2026-08-21 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-62861 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-62861?
- Check whether you run Typebot at an affected version. 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
The vulnerability is an authorization bypass in the custom domain deletion handler (handleDeleteCustomDomain.ts). The vulnerable code authorized the caller against a client-supplied workspaceId, but then sent the client-supplied domain name directly to the Vercel provider without verifying that the domain belonged to the verified workspace. An authenticated non-guest workspace member can exploit this by crafting a deletion request specifying another workspace's domain, causing that domain to be removed from the shared provider. The fix, deployed in version 3.18.0, adds a scoped custom domain lookup to verify ownership before deletion and uses the verified domain name for provider and database deletion operations.
Affected products
- TypeBot TypeBot before 3.18.0
Timeline
- 2026-08-25: disclosed
- 2026-06-27: patched: Fix commit merged, released in v3.18.0 on 2026-08-21