CVE-2026-42333
quarkus-openapi-generator has overly broad path-parameter matching that sends authentication headers to unintended operations
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.
INFO
Published Date :
May 9, 2026, 8:16 p.m.
Last Modified :
July 24, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Quarkus OpenAPI Generator to version 2.11.1-lts or later.
- Update Quarkus OpenAPI Generator to version 2.16.0-lts or later.
- Update Quarkus OpenAPI Generator to version 2.17.0 or later.
Public PoC/Exploit Available at Github
CVE-2026-42333 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-42333.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-42333 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-42333
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Public CVE writeups, reproducible proof-of-concepts, and reusable scanners from my vulnerability research.
cve poc scanner security writeups
Python Shell JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42333 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-42333 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: quarkus-openapi-generator de quarkiverse, Description: Quarkus OpenAPI Generator es las extensiones de Quarkus para la generación de Clientes Rest y la generación de stubs de servidor. Antes de las versiones 2.11.1-lts, 2.16.0-lts, y 2.17.0, el filtro de autenticación generado coincide con las plantillas de ruta OpenAPI de forma demasiado amplia al decidir si adjuntar credenciales. Un esquema de seguridad configurado para una operación puede, por lo tanto, aplicarse a una operación diferente del mismo método cuya ruta solo se asemeja parcialmente a la plantilla protegida, causando que los tokens de portador, claves API, o credenciales básicas sean enviados a puntos finales no deseados. Este problema ha sido parcheado en las versiones 2.11.1-lts, 2.16.0-lts, y 2.17.0. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'quarkiverse', 'product': 'quarkus-openapi-generator', 'versions': [{'status': 'affected', 'version': '< 2.11.1-lts'}, {'status': 'affected', 'version': '< 2.16.0-lts'}, {'status': 'affected', 'version': '< 2.17.0'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-42333', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-11T14:58:43.999964Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 11, 2026
Action Type Old Value New Value Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-fr8f-rwjx-f32v -
New CVE Received by [email protected]
May. 09, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CWE CWE-200 Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/pull/1586 Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/releases/tag/2.11.1-lts Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/releases/tag/2.16.0-lts Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/releases/tag/2.17.0 Added Reference https://github.com/quarkiverse/quarkus-openapi-generator/security/advisories/GHSA-fr8f-rwjx-f32v