# CVE-2025-6088: Improper Authorization in danny-avila/librechat

> A logged-in user can read other users' conversations by accessing a shared endpoint without proper authorization checks.

- **Severity:** Medium 4.2 (`CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/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 Sep 2025
- **Updated:** 11 Sep 2025
- **Also known as:** GHSA-9g7r-h55w-795g

## What is CVE-2025-6088?

CVE-2025-6088 is a medium-severity missing authorization vulnerability in Librechat Librechat, published on 11 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In version 0.7.8 of danny-avila/librechat, improper authorization controls in the conversation sharing feature allow unauthorized access to other users' conversations if the conversation ID is known. Although UUIDv4 conversation IDs are generated server-side and are difficult to brute force, they can be obtained from less-protected sources such as server-side access logs, browser history, or screenshots. The vulnerability permits a logged-in user to gain read-only access to another user's conversations by exploiting the `/api/share/conversationID` endpoint, which lacks authorization checks. This issue is resolved in version v0.7.9-rc1.

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2025-6088?

It affects 1 product.


Products: Librechat Librechat.

## How do I fix CVE-2025-6088?

No fix has been published for CVE-2025-6088 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-6088 being exploited?

There is no known exploitation of CVE-2025-6088 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-2025-6088 and fix it if it is affected.

What it is: CVE-2025-6088 is a medium-severity missing authorization vulnerability in Librechat Librechat, published on 11 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-6088 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-2025-6088/ (Markdown: https://insights.sbomify.com/CVE-2025-6088/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-6088
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-6088
- OSV: https://osv.dev/vulnerability/CVE-2025-6088

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-6088/
Summaries are generated and may contain mistakes; the official description above is the record.