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TI-2026-37281 Aliases CVE-2026-50559GHSA-qcxp-gm7m-4j5v

Authentication/Authorization Bypass via Advanced Path Normalization Vulnerabilities

Priority HIGH 72CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 10 fixed, 5 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-287.

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01023 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial quarkus (quarkusio): 3.36.3, 3.33.2.1, 3.27.4.1 +1io.quarkus:quarkus-vertx-http (Maven): 3.20.6.2, 3.27.4.1, 3.33.2.1 +2Red Hat: 10 advisoriesRed Hat: 10 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
quarkusioquarkus3.36.0 to before 3.36.3; 3.33.0 to before 3.33.2.1; 3.27.0 to before 3.27.4.1; before 3.20.6.23.36.3, 3.33.2.1, 3.27.4.1, 3.20.6.2Patch availableCNA
—io.quarkus:quarkus-vertx-http (Maven)before 3.20.6.23.20.6.2Patch availableGHSA-qcxp-gm7m-4j5v
—io.quarkus:quarkus-vertx-http (Maven)3.21.0.CR1 to before 3.27.4.13.27.4.1Patch availableGHSA-qcxp-gm7m-4j5v
—io.quarkus:quarkus-vertx-http (Maven)3.28.0.CR1 to before 3.33.2.13.33.2.1Patch availableGHSA-qcxp-gm7m-4j5v
—io.quarkus:quarkus-vertx-http (Maven)3.34.0.CR1 to before 3.36.33.36.3Patch availableGHSA-qcxp-gm7m-4j5v
—io.quarkus:quarkus-vertx-http (Maven)3.37.0.CR1 to before 3.37.03.37.0Patch availableGHSA-qcxp-gm7m-4j5v
  • quarkus Vendorquarkusio Affected 3.36.0 to before 3.36.3; 3.33.0 to before 3.33.2.1; 3.27.0 to before 3.27.4.1; before 3.20.6.2 Fixed in 3.36.3, 3.33.2.1, 3.27.4.1, 3.20.6.2 Patch available CNA
  • io.quarkus:quarkus-vertx-http (Maven) Vendor— Affected before 3.20.6.2 Fixed in 3.20.6.2 Patch available GHSA-qcxp-gm7m-4j5v
  • io.quarkus:quarkus-vertx-http (Maven) Vendor— Affected 3.21.0.CR1 to before 3.27.4.1 Fixed in 3.27.4.1 Patch available GHSA-qcxp-gm7m-4j5v
  • io.quarkus:quarkus-vertx-http (Maven) Vendor— Affected 3.28.0.CR1 to before 3.33.2.1 Fixed in 3.33.2.1 Patch available GHSA-qcxp-gm7m-4j5v
  • io.quarkus:quarkus-vertx-http (Maven) Vendor— Affected 3.34.0.CR1 to before 3.36.3 Fixed in 3.36.3 Patch available GHSA-qcxp-gm7m-4j5v
  • io.quarkus:quarkus-vertx-http (Maven) Vendor— Affected 3.37.0.CR1 to before 3.37.0 Fixed in 3.37.0 Patch available GHSA-qcxp-gm7m-4j5v

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:*before 3.20.6.2; 3.21.0 to before 3.27.4.1; 3.28.0 to before 3.33.2.1; 3.34.0 to before 3.36.3Vulnerablequarkusio
  • cpe:2.3:a:quarkus:quarkus:*:*:*:*:*:*:*:* Versions before 3.20.6.2; 3.21.0 to before 3.27.4.1; 3.28.0 to before 3.33.2.1; 3.34.0 to before 3.36.3 Vulnerable ·quarkusio

Remediation

  • Fix · CNA quarkus (quarkusio) Fixed in 3.36.3, 3.33.2.1, 3.27.4.1, 3.20.6.2
  • Fix · GHSA-qcxp-gm7m-4j5v io.quarkus:quarkus-vertx-http (Maven) Fixed in 3.20.6.2 Advisory →
  • Fix · GHSA-qcxp-gm7m-4j5v io.quarkus:quarkus-vertx-http (Maven) Fixed in 3.27.4.1 Advisory →
  • Fix · GHSA-qcxp-gm7m-4j5v io.quarkus:quarkus-vertx-http (Maven) Fixed in 3.33.2.1 Advisory →
  • Fix · GHSA-qcxp-gm7m-4j5v io.quarkus:quarkus-vertx-http (Maven) Fixed in 3.36.3 Advisory →
  • Fix · GHSA-qcxp-gm7m-4j5v io.quarkus:quarkus-vertx-http (Maven) Fixed in 3.37.0 Advisory →

Red Hat 10 advisories

  • RHSA-2026:87410 Released 2026-10-21 · Red Hat rating Critical
    RHOAI 2.25.12 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-codeflare-operator-rhel9 +47
  • RHSA-2026:84734 Released 2026-10-19 · Red Hat rating Critical
    RHOAI 3.4.5 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47
  • RHSA-2026:54435 Released 2026-08-12 · Red Hat rating Important
    Streams for Apache Kafka 3.2.1 release and security update
    • Streams for Apache Kafka 3.2.1
Show 7 more Red Hat advisories
  • RHSA-2026:48151 Released 2026-07-29 · Red Hat rating Important
    Red Hat build of Cryostat security update
    • Cryostat 4 on RHEL 9 cryostat/cryostat-grafana-dashboard-rhel9, cryostat/cryostat-openshift-console-plugin-rhel9, cryostat/cryostat-reports-rhel9 +4
  • RHSA-2026:36820 Released 2026-07-08 · Red Hat rating Important
    Red Hat OpenShift Dev Spaces 3.29.0 Release.
    • Red Hat OpenShift Dev Spaces 3.29 registry.redhat.io/devspaces/code-rhel9, registry.redhat.io/devspaces/dashboard-rhel9, registry.redhat.io/devspaces/multicluster-redirector-rhel9 +6
  • RHSA-2026:34608 Released 2026-07-02 · Red Hat rating Important
    Streams for Apache Kafka 2.9.4 release and security update
    • Streams for Apache Kafka 2.9.4
  • RHSA-2026:26586 Released 2026-06-17 · Red Hat rating Important
    Red Hat build of Apache Camel 4.18 for Quarkus 3.33 security update
    • Red Hat Build of Apache Camel 3.33.2.SP1 io.netty.netty-codec-haproxy-4.1.135.Final-redhat-00001.jar, io.netty.netty-codec-http2-4.1.135.Final-redhat-00001.jar, io.netty.netty-handler-4.1.135.Final-redhat-00001.jar +3
  • RHSA-2026:26194 Released 2026-06-17 · Red Hat rating Important
    Red Hat build of Quarkus 3.20.6.SP2 security update
    • Red Hat build of Quarkus 3.20.6.SP2 io.quarkus.quarkus-vertx-http-3.20.6.redhat-00004.jar
  • RHSA-2026:26018 Released 2026-06-17 · Red Hat rating Important
    Red Hat build of Quarkus 3.27.4.SP1 security update
    • Red Hat build of Quarkus 3.27.4.SP1 io.netty.netty-codec-haproxy-4.1.135.Final-redhat-00001.jar, io.netty.netty-codec-http-4.1.135.Final-redhat-00001.jar, io.netty.netty-codec-http2-4.1.135.Final-redhat-00001.jar +4
  • RHSA-2026:26017 Released 2026-06-17 · Red Hat rating Important
    Red Hat build of Quarkus 3.33.2.SP1 security update
    • Red Hat build of Quarkus 3.33.2.SP1 io.netty.netty-codec-haproxy-4.1.135.Final-redhat-00001.jar, io.netty.netty-codec-http-4.1.135.Final-redhat-00001.jar, io.netty.netty-codec-http2-4.1.135.Final-redhat-00001.jar +4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
OpenShift ServerlessAffectedNo fix yet
Red Hat Fuse 7AffectedNo fix yet: Fix deferred
Red Hat build of Apache Camel - HawtIO 4AffectedNo fix yet
Red Hat build of Apache Camel 4 for Quarkus 3AffectedNo fix yet
Red Hat build of Debezium 3AffectedNo fix planned: Will not fix
Cryostat 4 on RHEL 9Fixed RHSA-2026:48151
Red Hat Build of Apache Camel 3.33.2.SP1Fixed RHSA-2026:26586
Red Hat OpenShift AI 2.25Fixed RHSA-2026:87410
Red Hat OpenShift AI 3.4Fixed RHSA-2026:84734
Red Hat OpenShift Dev Spaces 3.29Fixed RHSA-2026:36820
Red Hat build of Quarkus 3.20.6.SP2Fixed RHSA-2026:26194
Red Hat build of Quarkus 3.27.4.SP1Fixed RHSA-2026:26018
Red Hat build of Quarkus 3.33.2.SP1Fixed RHSA-2026:26017
Streams for Apache Kafka 2.9.4Fixed RHSA-2026:34608
Streams for Apache Kafka 3.2.1Fixed RHSA-2026:54435
Not affected: 11 products
  • Cryostat 4 on RHEL 9
  • Red Hat Build of Apache Camel 3.33.2.SP1
  • Red Hat Build of Keycloak
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat OpenShift AI 2.25
  • Red Hat OpenShift AI 3.4
  • Red Hat OpenShift Dev Spaces 3.29
  • Red Hat build of Apicurio Registry 3
  • Red Hat build of Quarkus 3.20.6.SP2
  • Red Hat build of Quarkus 3.27.4.SP1
  • Red Hat build of Quarkus 3.33.2.SP1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-50559
  2. 2026-10-03 Alias added: GHSA-qcxp-gm7m-4j5v
  3. 2026-10-13 Fix available: Red Hat Build of Apache Camel 3.33.2.SP1 · Red Hat
  4. 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
  5. 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
  6. 2026-10-22 Fix available: RHSA-2026:87410 · Red Hat
  7. 2026-10-23 Fix available: Red Hat OpenShift AI 2.25 · Red Hat

References

Exploit 1

Advisory 1

Other 12

  • TI-2022-06097 Unchecked Class Instantiation when providing Plugin Classes CVSS 3.1CRITICAL 9.8
  • TI-2022-03763 Injection in quarkus CVSS 3.1CRITICAL 9.8
  • TI-2020-15666 XML external entity injection in jackson-databind CVSS 3.1HIGH 7.5
  • TI-2017-13794 The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load… CVSS 3.1HIGH 7.5
  • TI-2021-08126 block repositories using http by default CVSS 3.1CRITICAL 9.1
  • TI-2021-04395 Possible request smuggling in HTTP/2 due missing validation CVSS 3.1MEDIUM 5.9
See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences