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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 11 Nov 2025 02:15:00 +0900

Type Values Removed Values Added
CPEs cpe:2.3:a:librechat:librechat:0.7.9:-:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Sat, 01 Nov 2025 01:15:00 +0900

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 31 Oct 2025 19:15:00 +0900

Type Values Removed Values Added
First Time appeared Librechat
Librechat librechat
Vendors & Products Librechat
Librechat librechat

Fri, 31 Oct 2025 09:00:00 +0900

Type Values Removed Values Added
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.
Title Denial of Service in danny-avila/librechat
Weaknesses CWE-400
References
Metrics cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2025-10-31T15:09:34.057Z

Reserved: 2025-08-10T18:16:35.321Z

Link: CVE-2025-8849

cve-icon Vulnrichment

Updated: 2025-10-31T15:00:02.570Z

cve-icon NVD

Status : Analyzed

Published: 2025-10-31T00:15:37.480

Modified: 2025-11-10T17:14:43.587

Link: CVE-2025-8849

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-31T19:12:50Z

Weaknesses