> CVE-2026-39852 [HIGH]

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PUBLISHED
2026-05-05 21:16
MODIFIED
2026-05-05 21:16
CVSS_SCORE V3
8.8
EPSS (Prob. Exploit)
0.63%
Top 50.3%
DATA SOURCES:
NVD 🔗 2026-05-05 RED HAT 🔗 2026-05-10 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05

> DESCRIPTION

Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or lower-privileged users to bypass HTTP path-based authorization policies. Quarkus's security layer performs authorization checks on the raw URL path which preserves matrix parameters (semicolons), while RESTEasy Reactive's routing layer strips matrix parameters before matching endpoints. An attacker can append a semicolon and arbitrary text to a request URL (e.g., /api/admin;anything) to bypass policies protecting /api/admin while still routing to the protected endpoint. This issue has been fixed in versions 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2.

> AFFECTED_PRODUCTS

Red Hat - Red Hat Build of Apache Camel 4.14 for Quarkus 3.27
Red Hat - Red Hat build of Quarkus 3.20.6.SP1
Red Hat - Red Hat build of Quarkus 3.27.3.SP1

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-863

> CWE DETAILED DESCRIPTIONS

CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6.SP1 security update
An update is now available for Red Hat build of Quarkus. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base sco...
Red Hat Security Advisory: Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 update is now available (RHBQ 3.27.3.SP1)
An update for Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 update is now available (RHBQ 3.27.3.SP1). The purpose of this text-only errata is to inform you about the enhancements that improve y...
Red Hat Security Advisory: Red Hat build of Quarkus 3.27.3.SP1 security update
An update is now available for Red Hat build of Quarkus. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base sco...
Red Hat Security Advisory: Red Hat build of Cryostat 4.2.0: new RHEL 9 container image security update
New Red Hat build of Cryostat 4.2.0 on RHEL 9 container images are now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scori...
Red Hat Security Advisory: HawtIO 4.4.0 for Red Hat build of Apache Camel 4 Release and security update.
HawtIO 4.4.0 for Red Hat build of Apache Camel 4 GA Release is now available. The purpose of this text-only errata is to inform you about the enhancements that improve your developer experience and e...
Red Hat Security Advisory: Streams for Apache Kafka 2.9.4 release and security update
Streams for Apache Kafka 2.9.4 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...
Red Hat Security Advisory: Streams for Apache Kafka 3.2.1 release and security update
Streams for Apache Kafka 3.2.1 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-rc95-pcm8-65v9 HIGH

Quarkus has Authentication/Authorization bypasses

AFFECTED PACKAGES:
MAVEN / io.quarkus:quarkus-vertx-http
>= 3.34.0, < 3.35.1.1
Fixed in: 3.35.1.1
MAVEN / io.quarkus:quarkus-vertx-http
>= 3.30.0, < 3.33.1.1
Fixed in: 3.33.1.1
MAVEN / io.quarkus:quarkus-vertx-http
>= 3.21.0, < 3.27.3.1
Fixed in: 3.27.3.1
MAVEN / io.quarkus:quarkus-vertx-http
< 3.20.6.1
Fixed in: 3.20.6.1

> HISTORIQUE DES MODIFICATIONS

Première apparition
05/05/2026 21:16
Source: NVD
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-863: Incorrect Authorization - The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
📊 ENRICHISSEMENT 10/05/2026 05:02
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 10/05/2026 05:02
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/quarkusio/quarkus/security/advisories/GHSA-rc95-pcm8-65v9
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