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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

Red HatCVE-2026-87743

Red Hat Quarkus HTTP security: information disclosure

Red Hat

CVE-2026-87743 · Published Sep 18, 2026 · updated Oct 29, 2026

High7.5
No fix yet
Red Hat advisory

A flaw was found in Quarkus HTTP security. An unauthenticated attacker can exploit a discrepancy in how paths are normalized between the security matcher and HTTP request dispatchers. This allows the attacker to craft a URL that the security matcher considers public, but which is then routed to a protected endpoint, leading to an authorization bypass and potential unauthorized access to sensitive information.

Affected versions

PackageAffectedFixed in
Exploit Intelligence
Product
all versionsNo fix yet
OpenShift Serverless
Product
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
all versionsNo fix yet
Red Hat build of Quarkus 3.27.5.SP2
Product
all versionsNo fix yet
Red Hat build of Quarkus 3.33.3.SP2
Product
all versionsNo fix yet
Details and references

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