# CVE-2023-6563: Allocation of Resources Without Limits in Keycloak

Source: https://junglewise.ai/threats/cve-2023-6563-allocation-of-resources-without-limits-in-keycloak  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-12-14  
License: CC BY 4.0 with a link back

CVE-2023-6563 · Severity: low · CVSS 3.1 · Published 2023-12-14

Allocation of Resources Without Limits in Keycloak

Technologies: [org.keycloak:keycloak-model-jpa (Maven)](https://junglewise.ai/threats/technologies/org-keycloak-keycloak-model-jpa). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2023-6563 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-6563 being exploited in the wild.

**How severe is CVE-2023-6563?** Low severity, with a CVSS score of 3.1, published 14 December 2023.

**Which products and versions are affected?** org.keycloak:keycloak-model-jpa (Maven) ECOSYSTEM:introduced=0,fixed=21.0.0.

**Is there a fix for CVE-2023-6563?** Yes. org.keycloak:keycloak-model-jpa (Maven): upgrade to 21.0.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-6563?** Check whether you run org.keycloak:keycloak-model-jpa (Maven) 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

- org.keycloak:keycloak-model-jpa (Maven): upgrade to 21.0.0 or later

  ```sh
  # set org.keycloak:keycloak-model-jpa to 21.0.0 in your pom.xml or build.gradle
  ```


## Affected products

- org.keycloak:keycloak-model-jpa (Maven) ECOSYSTEM:introduced=0,fixed=21.0.0

## Identifiers

- CVE-2023-6563
- GHSA-54f3-c6hg-865h

## Related threats

- [Keycloak: Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure](https://junglewise.ai/threats/cve-2026-3190-keycloak-missing-role-enforcement-on-uma-2-0-permission-ticket)
- [Keycloak Unauthenticated Access](https://junglewise.ai/threats/cve-2019-14832-keycloak-unauthenticated-access)