AnythingLLM 1.8.5 Endpoint /api/workspaces improper authentication

Summaryinfo

A vulnerability labeled as critical has been found in AnythingLLM 1.8.5. This issue affects some unknown processing of the file /api/workspaces of the component Endpoint. Executing a manipulation can lead to improper authentication. This vulnerability is handled as CVE-2025-63390. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in AnythingLLM 1.8.5 and classified as critical. This vulnerability affects an unknown part of the file /api/workspaces of the component Endpoint. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality. CVE summarizes:

An authentication bypass vulnerability exists in AnythingLLM v1.8.5 in via the /api/workspaces endpoint. The endpoint fails to implement proper authentication checks, allowing unauthenticated remote attackers to enumerate and retrieve detailed information about all configured workspaces. Exposed data includes: workspace identifiers (id, name, slug), AI model configurations (chatProvider, chatModel, agentProvider), system prompts (openAiPrompt), operational parameters (temperature, history length, similarity thresholds), vector search settings, chat modes, and timestamps.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-63390 since 10/27/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/20/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-204305). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• AnythingLLM

Version

• 1.8.5

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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