GCD AI RADAR
incidents/AIR-2026-0104

CVE-2026-88006: Open WebUI OAuth role management bypass vulnerability

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability

Open WebUI's OAuth token exchange endpoint issues sessions for provider access tokens without running normal role management callbacks. This allows users to obtain sessions with existing roles even if provider roles would normally be demoted or refused.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerability
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Framework / tooling
products
Open WebUI
incident date
10 Sep 2026
first reported
10 Sep 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-88006 · open-webui · oauth
record
created 2026-10-18 06:33Z · updated 2026-10-18 07:00Z · json

Sources · 2

  1. 2026-09-10
    CVE-2026-88006: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-88006
  2. 2026-09-10
    CVE-2026-88006: Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange
    GitHub Advisory Database · github.com/advisories/GHSA-wvm9-9g5j-623f

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