# Keycloak Cross-site Scripting on OpenID connect login service

Advisory record · `GHSA-9hhc-pj4w-w5rv`

- **Identifiers:** `GHSA-9hhc-pj4w-w5rv` · `CVE-2022-4137`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-79](https://cwe.mitre.org/data/definitions/79.html) · [CWE-81](https://cwe.mitre.org/data/definitions/81.html) · [CWE-116](https://cwe.mitre.org/data/definitions/116.html)
- **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md) · [CWE-81](https://agentprime.io/advisories/tag/cwe-81.md) · [CWE-116](https://agentprime.io/advisories/tag/cwe-116.md)
- **Published:** 1 Mar 2023
- **Updated:** 16 Feb 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 1 Mar 2023, 17:38 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.keycloak:keycloak-parent` (Maven): affected `<20.0.5`; fixed in `20.0.5`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N`, from CNA (redhat)

- **CISA KEV:** Not listed.
- **EPSS:** 0.012, the 68th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 1 Mar 2023. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-9hhc-pj4w-w5rv](https://github.com/advisories/GHSA-9hhc-pj4w-w5rv)
- [OSV: GHSA-9hhc-pj4w-w5rv](https://osv.dev/vulnerability/GHSA-9hhc-pj4w-w5rv)
- <https://github.com/keycloak/keycloak/security/advisories/GHSA-9hhc-pj4w-w5rv>
- <https://nvd.nist.gov/vuln/detail/CVE-2022-4137>
- <https://github.com/keycloak/keycloak/pull/16774>
- <https://github.com/keycloak/keycloak/commit/30d0e9d22dae51392e5a3748a1c68c116667359a>
- <https://access.redhat.com/errata/RHSA-2023:1043>
- <https://access.redhat.com/errata/RHSA-2023:1044>
- <https://access.redhat.com/errata/RHSA-2023:1045>
- <https://access.redhat.com/errata/RHSA-2023:1049>
- <https://access.redhat.com/security/cve/CVE-2022-4137>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2148496>
- <https://github.com/keycloak/keycloak>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-9hhc-pj4w-w5rv>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-9hhc-pj4w-w5rv/>. Everything for agents: <https://agentprime.io/llms.txt>.