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Medium · 5.7 CVE-2025-7105 EUVD-2025-206617GHSA-crqj-2v3f-c8g9

Denial of Service via JavaScript Memory Overflow in danny-avila/librechat

Published Feb 2, 2026 · Updated Feb 2, 2026 · Assigned by @huntr_ai

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.

Affected products

VendorProductAffectedFixed
danny-avila danny-avila/librechat unspecified – < v0.7.9 v0.7.9

References