CVE-2026-50338
HighPublished
Azure Spring Apps Elevation of Privilege Vulnerability
- Published
- Jul 14, 2026
- Updated
- Oct 8, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 17, 2026
Primary CVSS
8.2/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N0.5%
Low · next 30 days
- Percentile
- 42.7%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Improper authentication in Azure Spring Apps allows an authorized attacker to elevate privileges over a network.
Sources
Proof-of-concept exploit for CVE-2026-50338: cross-issuer authentication bypass in Spring Cloud Azure B2C resource servers. Demonstrates token forgery via AAD app registration to access protected B2C endpoints.
Responsible use
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