Token Misuse in Quarkus Applications with Multiple OIDC Providers
CVE-2026-19625

5.3MEDIUM

Key Information:

Vendor

IBM
Status
Enterprise Build Of Quarkus
Vendor
CVE Published:
8 September 2026

What is CVE-2026-19625?

A security vulnerability in Quarkus applications occurs when multiple endpoints secured by different OIDC provider tenants allow a valid token from one provider to access resources protected by another. This situation arises when an optional token introspection cache is enabled, creating a significant risk of unauthorized access across secured endpoints.

Affected Version(s)

Enterprise Build of Quarkus 3.27.1 <= 3.27.5

Enterprise Build of Quarkus 3.33.1 <= 3.33.3

References

https://www.ibm.com/support/pages/node/7286498
vendor-advisorypatch

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Michael Read (https://github.com/Michael-JRead) , Michael Read (https://github.com/Michael-JRead)
.