# CVE-2026-5631: assafelovic gpt-researcher ws Endpoint server_utils.py extract_command_data code injection

> Remote attackers can execute arbitrary code via the ws Endpoint in gpt-researcher due to unsafe handling of command data arguments.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Apr 2026
- **Updated:** 6 Apr 2026
- **Also known as:** GHSA-2q6q-x2rq-67q4

## What is CVE-2026-5631?

CVE-2026-5631 is a medium-severity code injection vulnerability in assafelovic gpt-researcher, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been found in assafelovic gpt-researcher up to 3.4.3. This affects the function extract_command_data of the file backend/server/server_utils.py of the component ws Endpoint. Such manipulation of the argument args leads to code injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2026-5631?


## How do I fix CVE-2026-5631?

No fix has been published for CVE-2026-5631 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-5631 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5631 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5631 and fix it if it is affected.

What it is: CVE-2026-5631 is a medium-severity code injection vulnerability in assafelovic gpt-researcher, published on 6 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5631 exists.

Affected product: assafelovic gpt-researcher. 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-2026-5631/ (Markdown: https://insights.sbomify.com/CVE-2026-5631/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5631
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5631
- OSV: https://osv.dev/vulnerability/CVE-2026-5631

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5631/
Summaries are generated and may contain mistakes; the official description above is the record.