Description
A vulnerability in danny-avila/librechat allows attackers to exploit the unrestricted Fork Function in `/api/convos/fork` to fork numerous contents rapidly. If the forked content includes a Mermaid graph with a large number of nodes, it can lead to a JavaScript heap out of memory error upon service restart, causing a denial of service. This issue affects the latest version of the product.
Metrics
CVSS 3.0 5.7/10
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Feb 2, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Deferred