Librechat

LibreChat versions prior to 0.8.3-rc1 contain a Denial of Service vulnerability in the DELETE /api/convos endpoint where authenticated attackers can crash the Node.js server process by sending malformed requests lacking the required req.body.arg parameter. The vulnerability exploits improper destructuring without validation, causing an unhandled TypeError that bypasses Express middleware and triggers process.exit(1), resulting in complete service unavailability. No evidence of active exploitation in the wild or public POC has been identified at this time.

LibreChat versions 0.8.2 through 0.8.2-rc3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) OAuth callback endpoint that allows attackers to steal OAuth tokens by tricking victims into completing an OAuth flow, resulting in account takeover of the victim's MCP-linked services like Atlassian and Outlook. No active exploitation is known (not in KEV), no POC is publicly available, and EPSS data is not yet available for this newly disclosed vulnerability.

LibreChat before v0.8.2-rc2 allows any authenticated user to execute shell commands as root inside the container through the MCP stdio transport. A single API request is sufficient for root code execution. PoC available, patch available.

LibreChat 0.8.1-rc2 has SSRF in the Actions feature that allows authenticated users to make the server perform requests to internal networks. By configuring agents with malicious OpenAPI specifications, attackers can scan internal infrastructure and access internal services. PoC available, patch available.

LibreChat is a ChatGPT clone with additional features. Version 0.8.1-rc2 does not enforce proper access control when querying agent permissions. [CVSS 4.3 MEDIUM]

LibreChat is a ChatGPT clone with additional features. Version 0.8.1-rc2 does not enforce proper access control for file uploads to an agents file context and file search. [CVSS 7.1 HIGH]

LibreChat is a ChatGPT clone with additional features. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

A mass assignment vulnerability exists in danny-avila/librechat, affecting all versions. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

danny-avila/librechat is affected by an authorization bypass vulnerability due to improper access control checks. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

In version 0.7.8 of danny-avila/librechat, improper authorization controls in the conversation sharing feature allow unauthorized access to other users' conversations if the conversation ID is known. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable. Public exploit code available.

LibreChat is a ChatGPT clone with additional features. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

A vulnerability in danny-avila/librechat prior to version 0.7.6 allows for logs debug injection. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

An unhandled exception in the danny-avila/librechat repository, version git 600d217, can cause the server to crash, leading to a full denial of service. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

A vulnerability in danny-avila/librechat version git a1647d7 allows an unauthenticated attacker to cause a denial of service by sending a crafted payload to the server. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

In danny-avila/librechat version git 0c2a583, there is an improper input validation vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

A vulnerability in danny-avila/librechat version git 81f2936 allows for path traversal due to improper sanitization of file paths by the multer middleware. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

An unhandled exception in danny-avila/librechat version 3c94ff2 can lead to a server crash. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

An improper access control vulnerability in danny-avila/librechat versions prior to 0.7.6 allows authenticated users to delete other users' prompts via the groupid parameter. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

An improper access control vulnerability (IDOR) exists in the delete attachments functionality of danny-avila/librechat version v0.7.5-rc2. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

In version 0.7.5 of danny-avila/LibreChat, there is an improper access control vulnerability. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

An arbitrary file deletion vulnerability exists in danny-avila/librechat version v0.7.5-rc2, specifically within the /api/files endpoint. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

In danny-avila/librechat version v0.7.5-rc2, a vulnerability exists in the preset creation functionality where a user can manipulate the user ID field through mass assignment. Rated medium severity (CVSS 4.6), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.