Auth bypass in Danny-Avila Danny-Avila/librechat
CVE-2025-6088
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Danny-Avila Danny-Avila/librechat — versions unspecified
- Librechat — versions 0.7.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.com/bounties/361405bb-a739-41eb-a680-4cb6193e7c76 (Exploit, Patch, Third Party Advisory)
- github.com/danny-avila/librechat/commit/3af2666890bbf291cb7b9f3e03592d54714f0ff5 (Patch)
Frequently asked questions
- What is CVE-2025-6088?
- CVE-2025-6088 is a low-severity vulnerability in Danny-Avila Danny-Avila/librechat, classified under Improper Authorization. CVSS score: 3.1/10. Published 2025-09-11.
- How severe is CVE-2025-6088?
- Low severity. CVSS v3 base score is 3.1 out of 10.
- Is CVE-2025-6088 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.