Auth bypass in Mintplexlabs Anythingllm
CVE-2025-63390
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000
Affected products
- Mintplexlabs Anythingllm — versions 1.8.5
Weakness classification (CWE)
References
- github.com/Mintplex-Labs/anything-llm/issues (Issue Tracking)
- gist.github.com/Cristliu/ba529c99abec87102e5ef36435d02a6d (Third Party Advisory)
- gist.github.com/Cristliu/0897bceac5fdc2d945304b5087a84f14
Frequently asked questions
- What is CVE-2025-63390?
- CVE-2025-63390 is a medium-severity vulnerability in Mintplexlabs Anythingllm, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2025-12-18.
- How severe is CVE-2025-63390?
- Medium severity. CVSS v3 base score is 5.3 out of 10.