ASR AI Security Radar
Methodology Recent Incidents Get Notified

AI security incident: vLLM: OpenAI auth bypass (GHSA-94f4-hr76-p5j6)

Source disclosure: June 16, 2026 | Published on Radar: October 23, 2026 | Source: GitHub Security Advisory | Classification confidence: 45%

Source disclosure is when the advisory appeared in this source (or was added to a catalog), not a confirmed date of exploitation. Radar publication is when this page became available.

This incident is part of the public archive and includes explicit AI-related signals from the cited source material. Review methodology.

vLLM: OpenAI auth bypass Summary A vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware, which was discovered during @x41sec's source code audit. It allows to use the API without providing the configured VLLM API KEY or --api-key. Details In https://github.

Why This Is AI-Related

This page is treated as AI-specific because the source material references openai, which places the issue inside an AI workflow, model, assistant, or supporting dependency rather than a generic software bulletin.

  • openai

Affected Workflow

Audit SSO, service tokens, plugin credentials, user-to-tool permissions, and admin actions exposed through AI features.

Likely Attack Path

The weakness can let an attacker bypass identity checks or gain higher privileges inside an AI-facing product or workflow.

Impact

The issue can weaken identity or authorization boundaries around AI features, plugins, or operator workflows. Severity HIGH. Classification confidence 45%. Source channel GHSA.

Detection And Triage Signals

  • Unexpected admin actions or scope changes from AI-related users
  • Authentication events that skip normal challenge or approval steps
  • New tokens, integrations, or role assignments created without expected workflow traces

Recommended Response

  • Audit the affected AI workflow for exposed admin actions, service tokens, and user-to-tool permissions.
  • Rotate or disable sensitive credentials if the issue could weaken authentication or authorization boundaries.
  • Review access logs for unusual account actions, scope changes, or integrations created after disclosure.

Compliance And Business Impact

Identity control failures can expand blast radius quickly because AI tools often bridge multiple internal systems and datasets.

Sources

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