What’s Vulnerable › Vulnerabilities

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

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-11 · updated 2026-06-17
• Weakness: CWE-285

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.

Affected products

• danny-avila LibreChat: 0.7.8, 0.7.8-rc1

References

• https://github.com/danny-avila/librechat/commit/3af2666890bbf291cb7b9f3e03592d54714f0ff5
• https://huntr.com/bounties/361405bb-a739-41eb-a680-4cb6193e7c76

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