CVE-2026-119990: Missing authentication in Azure OpenAI

# CVE-2026-119990: Missing authentication in Azure OpenAI

https://gcdradar.vercel.app/incidents/cve-2026-119990-missing-authentication-in-azure-openai · AIR-2026-1864 · closed 2026-11-10

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Critical CVSS score of 9.8 with no confirmed exploitation in the wild.
- Fix status: Fix status unknown
- First reported: 2026-11-10
- AI role: Attack on AI
- Products: Azure OpenAI
- CVE ids: CVE-2026-119990
- CVSS: 9.8

## Summary

A missing authentication flaw in Azure OpenAI allows unauthorized attackers to elevate privileges over a network. No active exploitation has been reported.

## What to do

Check vendor advisories and apply available updates for Azure OpenAI.

## Latest updates

- 2026-11-10: CVE-2026-119990 Azure OpenAI Elevation of Privilege Vulnerability (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119990)
- 2026-11-10: CVE-2026-119990: Missing authentication for critical function in Azure OpenAI allows an unauthorized attacker to elevate privileges over a network. (https://nvd.nist.gov/vuln/detail/CVE-2026-119990)

## Sources

- 2026-11-10 NVD: CVE-2026-119990: Missing authentication for critical function in Azure OpenAI allows an unauthorized attacker to elevate privileges over a network. https://nvd.nist.gov/vuln/detail/CVE-2026-119990
- 2026-11-10 MSRC: CVE-2026-119990 Azure OpenAI Elevation of Privilege Vulnerability https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119990

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.