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MEDIUM severity

CVE-2022-2256 — keycloak-parent

MEDIUMFix: keycloak/keycloak@8e705a6

CVE-2022-2256 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in org.keycloak:keycloak-parent. A fix is available for org.keycloak:keycloak-parent — see the affected versions and patch details below.

Keycloak vulnerable to Stored Cross site Scripting (XSS) when loading default roles

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk
0.05%0.49%0.94%1.38%0.9%0.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
☕org.keycloak:keycloak-parent

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

A Stored XSS vulnerability was reported in the Keycloak Security mailing list, affecting all the versions of Keycloak, including the latest release (18.0.1). The vulnerability allows a privileged attacker to execute malicious scripts in the admin console, abusing of the default roles functionality.

CVSS 3.1 - 3.8

Vector String: AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Vector Clarification:

  • User interaction is not required as the admin console is regularly used during an administrator's work
  • The scope is unchanged since the admin console web application is both the vulnerable component and where the exploit executes

Credits

Aytaç Kalıncı, Ilker Bulgurcu, Yasin Yılmaz (@aytackalinci, @smileronin, @yasinyilmaz) - NETAŞ PENTEST TEAM

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.keycloak:keycloak-parentall versions19.0.2org.keycloak:keycloak-parent:19.0.2

Affected Products

1 product · 1 configurations
Application
single sign-onredhat
1 version
7.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.keycloak:keycloak-parent, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.keycloak:keycloak-parent to 19.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-2256 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatLow
ProductFixed inAdvisory
Red Hat Single Sign-On 7rh-sso7-keycloakRHSA-2022:6787
Red Hat Single Sign-On 7.5 for RHEL 7rh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el7ssoRHSA-2022:6782
Red Hat Single Sign-On 7.5 for RHEL 8rh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el8ssoRHSA-2022:6783

Frequently Asked Questions

A Stored XSS vulnerability was reported in the Keycloak Security mailing list, affecting all the versions of Keycloak, including the latest release (18.0.1). The vulnerability allows a privileged attacker to execute malicious scripts in the admin console, abusing of the default roles functionality. ### CVSS 3.1 - **3.8** **Vector String:** AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N **Vector Clarification:** * User interaction is not required as the admin console is regularly used during an administrator's work * The scope is unchanged since the admin console web application is both the vulnerabl
O3 Security · Impact-Aware SCA

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CVE-2022-2256: keycloak-parent XSS — Fixed in 19.0.2