# CVE-2026-39968: TypeBot: Cross-Workspace Credential Theft via Bot-Engine Preview Endpoint

> An attacker can bypass workspace ownership checks to steal credentials from other workspaces via the bot-engine preview endpoint.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 May 2026
- **Updated:** 26 May 2026
- **Also known as:** GHSA-cq66-9cwr-x8jr

## What is CVE-2026-39968?

CVE-2026-39968 is a high-severity missing authorization vulnerability in baptisteArno typebot.io, published on 22 May 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. In versions 3.15.2 and prior, the fix for GHSA-4xc5-wfwc-jw47 ("Credential Theft via Client-Side Script Execution and API Authorization Bypass") is incomplete. While the builder's getCredentials tRPC endpoint was patched with workspace membership checks, the bot-engine runtime still allows any authenticated user to use credentials from any workspace via the preview chat endpoint. The bot-engine's getCredentials() utility function uses a falsy check (if (workspaceId && ...)) for workspace ownership validation. Since the preview endpoint accepts a client-controlled workspaceId field and the Zod schema allows empty strings, an attacker can supply workspaceId: "" to bypass credential ownership verification entirely. Exploitation can result in credential exfiltration, external service abuse, financial damage and a data breach.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-522 (Insufficiently Protected Credentials), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-39968?


## How do I fix CVE-2026-39968?

No fix has been published for CVE-2026-39968 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-39968 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39968 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-39968 and fix it if it is affected.

What it is: CVE-2026-39968 is a high-severity missing authorization vulnerability in baptisteArno typebot.io, published on 22 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39968 exists.

Affected product: baptisteArno typebot.io. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-39968/ (Markdown: https://insights.sbomify.com/CVE-2026-39968/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-39968
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-39968
- OSV: https://osv.dev/vulnerability/CVE-2026-39968

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-39968/
Summaries are generated and may contain mistakes; the official description above is the record.