# CVE-2026-93985: OpenPanel js-runtime through 2.3.0 JavaScript Template Sandbox Escape RCE

> Attackers with project write access can execute arbitrary code via sandbox escape in JavaScript webhook templates.

- **Severity:** Critical 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **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:** 19 Sep 2026
- **Updated:** 2 Oct 2026
- **Also known as:** GHSA-6f7h-cvp6-w9w5, GHSA-rqpr-2wvr-29pf

## What is CVE-2026-93985?

CVE-2026-93985 is a critical code injection vulnerability in Openpanel-dev openpanel, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OpenPanel js-runtime through 2.3.0 contains a sandbox escape vulnerability in the JavaScript webhook template validator that fails to block computed member access to constructor chains. Attackers with project write access can create webhook templates using computed property notation to access Function constructor and execute arbitrary code in the worker process.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2026-93985?


## How do I fix CVE-2026-93985?

No fix has been published for CVE-2026-93985 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-93985 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93985 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-93985 and fix it if it is affected.

What it is: CVE-2026-93985 is a critical code injection vulnerability in Openpanel-dev openpanel, published on 19 Sep 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-2026-93985 exists.

Affected product: Openpanel-dev openpanel. 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-2026-93985/ (Markdown: https://insights.sbomify.com/CVE-2026-93985/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-93985
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93985
- OSV: https://osv.dev/vulnerability/CVE-2026-93985

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-93985/
Summaries are generated and may contain mistakes; the official description above is the record.