# CVE-2023-4853: Quarkus: http security policy bypass

Status: published. Published: 2023-09-20. Updated: 2026-11-04.

A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.

## Remediation

- workaround: Use a ‘deny’ wildcard for base paths, then authenticate specifics within that:

Examples:
```
deny: /*
authenticated: /services/*
```
or
```
deny: /services/*
roles-allowed: /services/rbac/*
```

NOTE: Products are only vulnerable if they use (or allow use of) path-based HTTP policy configuration. Products may also be affected–shipping the component in question–without being vulnerable (“affected at reduced impact”).

See https://access.redhat.com/security/vulnerabilities/RHSB-2023-002 for more detailed mitigations. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Openshift Serverless 1 on RHEL 8 (openshift-serverless-clients): ≥ 0:1.9.2-3.el8; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of OptaPlanner 8 (quarkus-vertx-http): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus 2.13.8.SP2 (io.quarkus/quarkus-keycloak-authorization): ≥ 2.13.8.Final-redhat-00005; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus 2.13.8.SP2 (io.quarkus/quarkus-undertow): ≥ 2.13.8.Final-redhat-00005; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus 2.13.8.SP2 (io.quarkus/quarkus-vertx-http): ≥ 2.13.8.Final-redhat-00005; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Camel Extensions for Quarkus 2.13.3-1 (quarkus-vertx-http): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/client-kn-rhel8): ≥ 1.9.2-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/ingress-rhel8-operator): ≥ 1.30.1-1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/knative-rhel8-operator): ≥ 1.30.1-1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/kn-cli-artifacts-rhel8): ≥ 1.9.2-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/serverless-operator-bundle): ≥ 1.30.1-1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/serverless-rhel8-operator): ≥ 1.30.1-1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1/svls-must-gather-rhel8): ≥ 1.30.1-1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1-tech-preview/logic-data-index-ephemeral-rhel8): ≥ 1.30.0-5; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1-tech-preview/logic-swf-builder-rhel8): ≥ 1.30.0-6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat OpenShift Serverless 1.30 (openshift-serverless-1-tech-preview/logic-swf-devmode-rhel8): ≥ 1.30.0-6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHEL-8 based Middleware Containers (rhpam-7/rhpam-kogito-builder-rhel8): ≥ 7.13.4-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHEL-8 based Middleware Containers (rhpam-7/rhpam-kogito-rhel8-operator): ≥ 7.13.4-2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHEL-8 based Middleware Containers (rhpam-7/rhpam-kogito-rhel8-operator-bundle): ≥ 7.13.4-2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHEL-8 based Middleware Containers (rhpam-7/rhpam-kogito-runtime-jvm-rhel8): ≥ 7.13.4-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHEL-8 based Middleware Containers (rhpam-7-tech-preview/rhpam-kogito-runtime-native-rhel8): ≥ 7.13.4-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHINT Camel-K-1.10.2 (quarkus-vertx-http): Version range not reported. Source: CNA: redhat
- Red Hat / RHINT Service Registry 2.5.4 GA (quarkus-vertx-http): Version range not reported. Source: CNA: redhat
- Red Hat / RHPAM 7.13.4 async: Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus (quarkus-keycloak-authorization): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus (quarkus-undertow): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Integration Camel Quarkus 2 (quarkus-vertx-http): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Process Automation 7 (quarkus-vertx-http): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 1.45% as of 2026-11-04; percentile 73.43%

- SSVC: Not available

- Weaknesses: CWE-148

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2023:5170 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5310 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5337 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5446 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5479 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5480 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:6107 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:6112 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:7653 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2023-4853 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://access.redhat.com/security/vulnerabilities/RHSB-2023-002 (CNA: redhat; technical-description, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2238034 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2023:5170 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:5310 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:5337 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:5446 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:5479 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:5480 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:6107 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:6112 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2023:7653 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/security/cve/CVE-2023-4853 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/security/vulnerabilities/RHSB-2023-002 (ADP: CVE; technical-description, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2238034 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2023-4853; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2023-4853; retrieved 2026-11-04; source updated Not reported

Revision: b5a2a65f90ced207080cb63f3799e982f6fa59746219b15a88929c7c9dae0070

Canonical: https://y2.dev/cve/CVE-2023-4853

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