CVE Watch11 sept 2026

CVE-2026-71416

Headroom compresses data before the data reaches a large language model. Prior to version 0.35.0, the Headroom WebSocket server does not val

CVSS

8.8

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 11 sept 2026 · Última mod.: 11 sept 2026 · CWE-287 · CWE-1385

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Headroom compresses data before the data reaches a large language model. Prior to version 0.35.0, the Headroom WebSocket server does not validate the `Origin` header of incoming client WebSocket requests before forwarding the request to the upstream server, allowing malicious WebSocket clients to perform arbitrary LLM requests without authentication. This can be exploited by a malicious WebSocket client executed in a traditional or headless browser such as lightpanda, if the browser has access to the Headroom proxy and the OpenAI API key is stored in the `OPENAI_API_KEY` environment variable. Version 0.35.0 fixes the issue.

Referencias oficiales

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