CVE-2026-42333

MEDIUM

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

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v4 6.3
EPSS 0.0010
EPSS Percentile 27.5%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (5)
io.quarkiverse.openapi.generator/quarkus-openapi-generator 0 - 2.16.0-ltsMaven
io.quarkiverse.openapi.generator/quarkus-openapi-generator 2.16.0 - 2.17.0Maven
quarkiverse/quarkus-openapi-generator < 2.11.1-lts
quarkiverse/quarkus-openapi-generator < 2.16.0-lts
quarkiverse/quarkus-openapi-generator < 2.17.0
Published May 09, 2026
Tracked Since May 10, 2026