CVE-2025-8849— Denial of Service in danny-avila/librechat
Quick assessment
Affected
danny-avila danny-avila/librechat
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
LibreChat是Danny Avila个人开发者的一个增强的 ChatGPT 克隆。 LibreChat 0.7.9版本存在资源管理错误漏洞，该漏洞源于/api/memories端点未限制参数值大小，可能导致拒绝服务攻击。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2025-8849
Vulnerability Information
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Vulnerability Title
Denial of Service in danny-avila/librechat
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
LibreChat 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreChat是Danny Avila个人开发者的一个增强的 ChatGPT 克隆。 LibreChat 0.7.9版本存在资源管理错误漏洞，该漏洞源于/api/memories端点未限制参数值大小，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| danny-avila | danny-avila/librechat | unspecified ~ v0.8.0-rc2 | - |
|
II. Public POCs for CVE-2025-8849
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-8849 (1)
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V. Comments for CVE-2025-8849
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