# CVE-2025-7104: Mass Assignment in danny-avila/librechat

> Attackers can manipulate sensitive fields and pollute prototypes in LibreChat, enabling unauthorized data modification and privilege escalation.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 29 Sep 2025
- **Updated:** 15 Oct 2025
- **Also known as:** GHSA-cwvq-3gph-65p4

## What is CVE-2025-7104?

CVE-2025-7104 is a medium-severity vulnerability in Librechat Librechat, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A mass assignment vulnerability exists in danny-avila/librechat, affecting all versions. This vulnerability allows attackers to manipulate sensitive fields by automatically binding user-provided data to internal object properties or database fields without proper filtering. As a result, any extra fields in the request body are included in agentData and passed to the database layer, allowing overwriting of any field in the schema, such as author, access_level, isCollaborative, and projectIds. Additionally, the Object.Prototype can be polluted due to the use of Object.assign with spread operators.

Weakness: CWE-915 (Improperly Controlled Modification of Dynamically-Determined Object Attributes)

## Which versions are affected by CVE-2025-7104?

It affects 1 product.


Products: Librechat Librechat.

## How do I fix CVE-2025-7104?

No fix has been published for CVE-2025-7104 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-7104 being exploited?

There is no known exploitation of CVE-2025-7104 in the wild and no public exploit code.

## Other vulnerabilities in Librechat Librechat

- [CVE-2026-32625](https://insights.sbomify.com/CVE-2026-32625/): LibreChat Exfiltrates Server Secrets via MCP Server URL Injection (critical 9.6)
- [CVE-2024-11167](https://insights.sbomify.com/CVE-2024-11167/): Improper Access Control in danny-avila/librechat (critical 9.4)
- [CVE-2026-22252](https://insights.sbomify.com/CVE-2026-22252/): LibreChat MCP Stdio Remote Command Execution (critical 9.1)
- [CVE-2025-69222](https://insights.sbomify.com/CVE-2025-69222/): LibreChat is vulnerable to Server-Side Request Forgery due to missing restrictions (critical 9.1)
- [CVE-2024-41704](https://insights.sbomify.com/CVE-2024-41704/): Path traversal in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-7104 and fix it if it is affected.

What it is: CVE-2025-7104 is a medium-severity vulnerability in Librechat Librechat, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-7104 in the wild and no public exploit code.

Affected product: Librechat Librechat. 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-2025-7104/ (Markdown: https://insights.sbomify.com/CVE-2025-7104/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-7104
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-7104
- OSV: https://osv.dev/vulnerability/CVE-2025-7104

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-7104/
Summaries are generated and may contain mistakes; the official description above is the record.