# Keycloak services allows the issuance of access and refresh tokens for disabled users

Advisory record · `GHSA-wv3h-x6c4-r867`

- **Identifiers:** `GHSA-wv3h-x6c4-r867` · `CVE-2025-14559`
- **State:** Confirmed
- **Severity:** CVSS 6.5 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-840](https://cwe.mitre.org/data/definitions/840.html) · [CWE-863](https://cwe.mitre.org/data/definitions/863.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-840](https://agentprime.io/advisories/tag/cwe-840.md)
- **Published:** 21 Jan 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 21 Jan 2026, 09:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.keycloak:keycloak-services` (Maven): affected `>=26.5.0, <26.5.2 || <26.4.9`; fixed in `26.5.2`, `26.4.9`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Keycloak's keycloak-services component, versions 26.5.0 up to 26.5.2 and versions below 26.4.9, can issue access and refresh tokens for disabled users through its Token Exchange flow when a privileged client invokes it. An attacker who controls such a privileged client could obtain tokens for a disabled account and keep privileges that were revoked. Upgrade keycloak-services to 26.5.2 or 26.4.9.

Written 2 Nov 2026.

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0048, the 41st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:17 UTC: First seen by agentprime
- 31 Oct 2026, 14:17 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-wv3h-x6c4-r867)

## Sources

- [GitHub Advisory Database: GHSA-wv3h-x6c4-r867](https://github.com/advisories/GHSA-wv3h-x6c4-r867)
- [OSV: GHSA-wv3h-x6c4-r867](https://osv.dev/vulnerability/GHSA-wv3h-x6c4-r867)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-14559>
- <https://github.com/keycloak/keycloak/issues/45651>
- <https://github.com/keycloak/keycloak/commit/2d0aa31c4830ebaad094c3762e78b884c141e659>
- <https://github.com/keycloak/keycloak/commit/d67349f3aa9fed5c61750619d0f9de6356aeaeff>
- <https://access.redhat.com/errata/RHSA-2026:2365>
- <https://access.redhat.com/errata/RHSA-2026:2366>
- <https://access.redhat.com/security/cve/CVE-2025-14559>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2421711>
- <https://github.com/keycloak/keycloak>
- <https://github.com/keycloak/keycloak/releases/tag/26.5.2>

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-wv3h-x6c4-r867>, 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-wv3h-x6c4-r867/>. Everything for agents: <https://agentprime.io/llms.txt>.