# CVE-2026-48765: TypeBot vulnerable to cross-workspace OAuth credential takeover in updateOAuthCredentials via missing object binding

> A low-privilege collaborator can hijack OAuth credentials across workspaces by exploiting missing object binding in the credential update logic.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L`)
- **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:** 11 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-3788-7276-x4j4

## What is CVE-2026-48765?

CVE-2026-48765 is a critical missing authorization 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 read collaborator to extract a workspace OAuth `credentialsId` from a readable bot configuration and then overwrite that credential through `handleUpdateOAuthCredentials()` by supplying an attacker-controlled writable `workspaceId`. The update path validates only the attacker-supplied workspace and then updates the credential record by global `id` alone, while also rewriting the credential's `workspaceId`. This allows cross-workspace OAuth credential takeover and reassignment. Version 3.17.0 patches the issue.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-48765?


## How do I fix CVE-2026-48765?

No fix has been published for CVE-2026-48765 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48765 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48765 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48765 and fix it if it is affected.

What it is: CVE-2026-48765 is a critical missing authorization 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48765 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-2026-48765/ (Markdown: https://insights.sbomify.com/CVE-2026-48765/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48765
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48765
- OSV: https://osv.dev/vulnerability/CVE-2026-48765

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48765/
Summaries are generated and may contain mistakes; the official description above is the record.