CVE-2025-8849

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/danny-avila/librechat/commit/edf33bedcbb08c33e59df76f06454ed7efd896f9	Patch
https://huntr.com/bounties/e9d9404c-cd19-4226-a580-9cba14b7d7d6	Exploit Mitigation Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:librechat:librechat:0.7.9:-:*:*:*:*:*:*

History

No history.

Information

Published : 2025-10-31 00:15

Updated : 2025-11-10 17:14

NVD link : CVE-2025-8849

Mitre link : CVE-2025-8849

CVE.ORG link : CVE-2025-8849

JSON object : View

Products Affected

librechat

librechat

CWE

CWE-400

Uncontrolled Resource Consumption

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