CVE-2026-39852 (GCVE-0-2026-39852)

Vulnerability from cvelistv5 – Published: 2026-05-05 20:58 – Updated: 2026-07-03 12:04
VLAI
Title
Quarkus authorization bypass via semicolon path normalization inconsistency
Summary
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.
Severity
8.8 (High)
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
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-863 - Incorrect Authorization
  • CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Assigner
References
Impacted products
Vendor Product Version
quarkusio quarkus Affected: < 3.20.6.1
Affected: >= 3.27.3.0, < 3.27.3.1
Affected: >= 3.34.0, < 3.34.7
Affected: >= 3.35.0, < 3.35.2
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Red Hat Cryostat 4 on RHEL 9     cpe:/a:redhat:cryostat:4::el9
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Red Hat HawtIO HawtIO 4.4.0     cpe:/a:redhat:apache_camel_hawtio:4.4::el9
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Red Hat Red Hat Build of Apache Camel 4.14 for Quarkus 3.27     cpe:/a:redhat:apache_camel_quarkus:3.27
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Red Hat Red Hat build of Quarkus 3.20.6.SP1     cpe:/a:redhat:quarkus:3.20::el8
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Red Hat Red Hat build of Quarkus 3.27.3.SP1     cpe:/a:redhat:quarkus:3.27::el8
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Red Hat Streams for Apache Kafka 2.9.4     cpe:/a:redhat:amq_streams:2.9::el9
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Red Hat OpenShift Serverless     cpe:/a:redhat:serverless:1
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Red Hat Red Hat build of Apache Camel 4 for Quarkus 3     cpe:/a:redhat:camel_quarkus:3
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Red Hat Red Hat build of Apicurio Registry 2     cpe:/a:redhat:service_registry:2
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Red Hat Red Hat build of Apicurio Registry 3     cpe:/a:redhat:apicurio_registry:3
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Red Hat Red Hat build of Debezium 3     cpe:/a:redhat:debezium:3
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Red Hat Red Hat build of OptaPlanner 8     cpe:/a:redhat:optaplanner:::el6
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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
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Red Hat Red Hat Process Automation 7     cpe:/a:redhat:jboss_enterprise_bpms_platform:7
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Red Hat streams for Apache Kafka 3     cpe:/a:redhat:amq_streams:3
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Red Hat Red Hat Build of Keycloak     cpe:/a:redhat:build_keycloak:
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Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
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Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.