CVE-2026-42333CWE-200

quarkus-openapi-generator has overly broad path-parameter matching that sends authentication headers to unintended operations

Medium · published May 9, 2026

CVSS v4.0
6.3
EPSS
1%
Percentile
50.9
In the wild
Unconfirmed
What it is

Quarkus OpenAPI Generator is Quarkus' extensions for generation of Rest Clients and server stubs generation. Prior to versions 2.11.1-lts, 2.16.0-lts, and 2.17.0, the generated authentication filter matches OpenAPI path templates too broadly when deciding whether to attach credentials. A security scheme configured for one operation can therefore be applied to a different same-method operation whose path only partially resembles the protected template, causing bearer tokens, API keys, or basic credentials to be sent to unintended endpoints. This issue has been patched in versions 2.11.1-lts, 2.16.0-lts, and 2.17.0.

The record
Technical detail
CVSS v4.0
6.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00658 · 50.9th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-05-09T19:16Z
EPSS history
Timeline
  • 09 MAY 19:16Z
    quarkus-openapi-generator has overly broad path-parameter matching that sends authentication headers to unintended operations
    cvelistv5