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.
Scores
CVSS v3
5.7
EPSS
0.0002
EPSS Percentile
3.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (1)
danny-avila/danny-avila/librechat
unspecified - v0.7.9
Published
Feb 02, 2026
Tracked Since
Feb 18, 2026