EUVD-2026-12103CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
Lifecycle Timeline
3Description
AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. In 1.11.1 and earlier, On default installations where no password or API key has been configured, all HTTP endpoints and the agent WebSocket lack authentication, and the server's CORS policy accepts any origin. AnythingLLM Desktop binds to 127.0.0.1 (loopback) by default. Modern browsers (Chrome, Edge, Firefox) implement Private Network Access (PNA). This explicitly blocks public websites from making requests to local IP addresses. Exploitation is only viable from within the same local network (LAN) due to browser-level blocking of public-to-private requests.
Analysis
AnythingLLM versions 1.11.1 and earlier contain an authentication bypass vulnerability on default installations where the application's HTTP endpoints and WebSocket connections lack proper authentication and accept requests from any origin. While rated CVSS 7.1, exploitation is limited to attackers on the same local network due to browser Private Network Access (PNA) protections, making this a medium-priority issue for most deployments.
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Remediation
Within 24 hours: Inventory all AnythingLLM deployments and document their network location (internet-facing vs. internal-only) and data classification. …
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External POC / Exploit Code
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