# CVE-2023-4853: Quarkus HTTP vulnerable to incorrect evaluation of permissions

Source: https://junglewise.ai/threats/cve-2023-4853-quarkus-http-vulnerable-to-incorrect-evaluation-of-permissions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-09-20  
License: CC BY 4.0 with a link back

CVE-2023-4853 · Severity: low · CVSS 3.1 · Published 2023-09-20

Quarkus HTTP vulnerable to incorrect evaluation of permissions

Technologies: [io.quarkus:quarkus-vertx-http (Maven)](https://junglewise.ai/threats/technologies/io-quarkus-quarkus-vertx-http). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2023-4853 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-4853 being exploited in the wild.

**How severe is CVE-2023-4853?** Low severity, with a CVSS score of 3.1, published 20 September 2023.

**Which products and versions are affected?** io.quarkus:quarkus-csrf-reactive (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final; io.quarkus:quarkus-keycloak-authorization (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final; io.quarkus:quarkus-undertow (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final; io.quarkus:quarkus-vertx-http (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final.

**Is there a fix for CVE-2023-4853?** Yes. io.quarkus:quarkus-csrf-reactive (Maven): upgrade to 2.16.11.Final or later; io.quarkus:quarkus-keycloak-authorization (Maven): upgrade to 2.16.11.Final or later; io.quarkus:quarkus-undertow (Maven): upgrade to 2.16.11.Final or later; io.quarkus:quarkus-vertx-http (Maven): upgrade to 2.16.11.Final or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-4853?** Check whether you run io.quarkus:quarkus-csrf-reactive (Maven), io.quarkus:quarkus-keycloak-authorization (Maven), io.quarkus:quarkus-undertow (Maven) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- io.quarkus:quarkus-csrf-reactive (Maven): upgrade to 2.16.11.Final or later

  ```sh
  # set io.quarkus:quarkus-csrf-reactive to 2.16.11.Final in your pom.xml or build.gradle
  ```

- io.quarkus:quarkus-keycloak-authorization (Maven): upgrade to 2.16.11.Final or later

  ```sh
  # set io.quarkus:quarkus-keycloak-authorization to 2.16.11.Final in your pom.xml or build.gradle
  ```

- io.quarkus:quarkus-undertow (Maven): upgrade to 2.16.11.Final or later

  ```sh
  # set io.quarkus:quarkus-undertow to 2.16.11.Final in your pom.xml or build.gradle
  ```

- io.quarkus:quarkus-vertx-http (Maven): upgrade to 2.16.11.Final or later

  ```sh
  # set io.quarkus:quarkus-vertx-http to 2.16.11.Final in your pom.xml or build.gradle
  ```


## Affected products

- io.quarkus:quarkus-csrf-reactive (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final
- io.quarkus:quarkus-keycloak-authorization (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final
- io.quarkus:quarkus-undertow (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final
- io.quarkus:quarkus-vertx-http (Maven) ECOSYSTEM:introduced=0,fixed=2.16.11.Final

## Identifiers

- CVE-2023-4853
- GHSA-4f4r-wgv2-jjvg

## Related threats

- [Quarkus authorization bypass via encoded path characters](https://junglewise.ai/threats/cve-2026-50559-quarkus-authorization-bypass-via-encoded-path-characters)
- [Quarkus authorization bypass via semicolon in HTTP path](https://junglewise.ai/threats/cve-2026-39852-quarkus-authorization-bypass-via-semicolon-in-http-path)
- [Cross-site Scripting in Quarkus](https://junglewise.ai/threats/cve-2023-0044-cross-site-scripting-in-quarkus)
- [Quarkus CORS filter allows simple GET and POST requests with an invalid Origin to proceed](https://junglewise.ai/threats/cve-2022-4147-quarkus-cors-filter-allows-simple-get-and-post-requests-with-an)