CVE-2025-8849

Published: Oct 31, 2025Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

LibreChat version 0.7.9 is vulnerable to a Denial of Service (DoS) attack due to unbounded parameter values in the `/api/memories` endpoint. The `key` and `value` parameters accept arbitrarily large inputs without proper validation, leading to a null pointer error in the Rust-based backend when excessively large values are submitted. This results in the inability to create new memories, impacting the stability of the service.

Affected (1)

Products: Librechat: Librechat

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Librechat Librechat	Version 0.7.9

Related CWEs

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (2)

https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9

Source: security@huntr.dev

Patch

https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6

Source: security@huntr.dev

ExploitMitigationThird Party Advisory

Timeline

No history available yet.