What’s Vulnerable › Vulnerabilities

CVE-2025-7105: Denial of Service via JavaScript Memory Overflow in danny-avila/librechat

• Severity: medium (CVSS 5.7 v3.0)
• 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: none known
• Published: 2026-02-02 · updated 2026-06-17
• Weakness: CWE-400

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

• danny-avila LibreChat: before v0.7.9 — fixed in v0.7.9

How to fix

Upgrade to a fixed version: danny-avila LibreChat v0.7.9. Check the vendor advisory for mitigations.

References

• https://github.com/danny-avila/librechat/commit/97a99985fa339db0a21ad63604e0bb8db4442ffc
• https://huntr.com/bounties/e44f0740-48bd-443b-8826-528e6afe9e34

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