CVE-2026-50559 (GCVE-0-2026-50559)

Vulnerability from cvelistv5 – Published: 2026-06-19 20:26 – Updated: 2026-07-30 12:04
VLAI
Title
Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities
Summary
Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle matrix parameters past the security layer, and using encoded slashes (%2F) or backslashes (%5C) to access protected static resources. This is a distinct issue from CVE-2026-39852, which addressed only literal semicolon stripping. Versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2 contain a patch.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-287 - Improper Authentication
  • CWE-863 - Incorrect Authorization
  • CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization
Assigner
References
Impacted products
Vendor Product Version
quarkusio quarkus Affected: >= 3.36.0, < 3.36.3
Affected: >= 3.33.0, < 3.33.2.1
Affected: >= 3.27.0, < 3.27.4.1
Affected: < 3.20.6.2
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Red Hat Cryostat 4 on RHEL 9 Unaffected: 4.2.0-13 , < * (rpm)
    cpe:/a:redhat:cryostat:4::el9
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Red Hat Red Hat Build of Apache Camel 3.33 for Quarkus 3.33.2.SP1 Unaffected: vertx-http , < * (rpm)
    cpe:/a:redhat:apache_camel_quarkus:3.33
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Red Hat Red Hat build of Quarkus 3.20.6.SP2 Unaffected: vertx-http , < * (rpm)
    cpe:/a:redhat:quarkus:3.20::el8
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Red Hat Red Hat build of Quarkus 3.27.4.SP1 Unaffected: vertx-http , < * (rpm)
    cpe:/a:redhat:quarkus:3.27::el8
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Red Hat Red Hat build of Quarkus 3.33.2.SP1 Unaffected: vertx-http , < * (rpm)
    cpe:/a:redhat:quarkus:3.33::el8
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Red Hat Streams for Apache Kafka 2.9.4 Unaffected: vertx-http , < * (rpm)
    cpe:/a:redhat:amq_streams:2.9::el9
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Red Hat Red Hat OpenShift Dev Spaces 3.29 Unaffected: 1782989027 , < * (rpm)
    cpe:/a:redhat:openshift_devspaces:3.29::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 Apache Camel - HawtIO 4     cpe:/a:redhat:apache_camel_hawtio:4
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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 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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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
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Red Hat streams for Apache Kafka 3     cpe:/a:redhat:amq_streams:3
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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.