PT-2025-44563 · Librechat · Librechat

Published 2025-08-02 · Updated 2025-11-10 · CVE-2025-8849

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions LibreChat version 0.7.9

Description LibreChat version 0.7.9 is susceptible to a Denial of Service (DoS) attack. The /api/memories endpoint allows unbounded parameter values for the key and value parameters. Lack of proper validation for these parameters can cause a null pointer error in the Rust-based backend when excessively large values are submitted. This prevents the creation of new memories and impacts the stability of the service.

Recommendations LibreChat version 0.7.9: Limit the size of input accepted by the key and value parameters in the /api/memories endpoint to prevent excessively large values from being submitted.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2025-16396

CVE-2025-8849

Affected Products

Librechat

References · 9

• 🔥 https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6 · Exploit
• https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9 · Patch
• https://bdu.fstec.ru/vul/2025-16396 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-8849 · Security Note
• https://osv.dev/vulnerability/CVE-2025-8849 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1984167918922260808 · Twitter Post
• https://twitter.com/CVEnew/status/1984108364113297624 · Twitter Post
• https://t.me/CVEtracker/36257 · Telegram Post
• https://t.me/cveNotify/142320 · Telegram Post