Description
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2025-7105 added forkIpLimiter and forkUserLimiter rate limiters to POST /api/convos/fork to prevent rapid-fire conversation duplication. However, the POST /api/convos/duplicate endpoint — which is in the same file and performs the exact same expensive database operations — was not given any rate limiter. An authenticated user can bypass the CVE-2025-7105 fix by using /duplicate instead of /fork to exhaust server resources. This vulnerability is fixed in 0.8.4-rc1.
Severity (CVSS)
| Base score | 6.5 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Provided by | CNA |
Weaknesses
- CWE-770 — CWE-770: Allocation of Resources Without Limits or Throttling
Affected products
| Vendor | Product | Versions |
|---|---|---|
| danny-avila | LibreChat | < 0.8.4-rc1 |
References
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-g445-9wq6-jf3v (x_refsource_CONFIRM)
Generated from the official CVE List on 26 Jun 2026 07:05 UTC.