# Duplicate Advisory: Keycloak: Unauthorized access via improper validation of encrypted SAML assertions

Advisory record · `GHSA-wmxr-6j5f-838p` · Withdrawn

- **Identifiers:** `GHSA-wmxr-6j5f-838p`
- **State:** Withdrawn
- **Severity:** CVSS 7.7 High
- **Critical:** No
- **Weakness (CWE):** [CWE-1287](https://cwe.mitre.org/data/definitions/1287.html)
- **Tags:** [CWE-1287](https://agentprime.io/advisories/tag/cwe-1287.md)
- **Published:** 18 Mar 2026
- **Updated:** 6 Oct 2026
- **Reviewed by a person:** No

**Withdrawn.** The GitHub Advisory Database withdrew this advisory on 2 Jul 2026. The record stays here, marked withdrawn.

Published by the GitHub Advisory Database at 18 Mar 2026, 03:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.keycloak:keycloak-saml-adapter-core` (Maven): affected `<26.2.14 || >=26.3.0, <26.4.10 || >=26.5.0, <26.5.5`; fixed in `26.2.14`, `26.4.10`, `26.5.5`
- `org.keycloak:keycloak-saml-core` (Maven): affected `>=26.3.0, <26.4.10 || <26.2.14 || >=26.5.0, <26.5.5`; fixed in `26.4.10`, `26.2.14`, `26.5.5`
- `org.keycloak:keycloak-services` (Maven): affected `>=26.5.0, <26.5.5 || <26.2.14 || >=26.3.0, <26.4.10`; fixed in `26.5.5`, `26.2.14`, `26.4.10`

## 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

- 7.7 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## Timeline

- 31 Oct 2026, 14:16 UTC: First seen by agentprime
- 31 Oct 2026, 14:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-wmxr-6j5f-838p)

## Sources

- [GitHub Advisory Database: GHSA-wmxr-6j5f-838p](https://github.com/advisories/GHSA-wmxr-6j5f-838p)
- [OSV: GHSA-wmxr-6j5f-838p](https://osv.dev/vulnerability/GHSA-wmxr-6j5f-838p)
- <https://nvd.nist.gov/vuln/detail/CVE-2026-2092>
- <https://github.com/keycloak/keycloak/commit/b40a25908d937bb0563ea516487bc2c7c1d92508>
- <https://access.redhat.com/errata/RHSA-2026:3925>
- <https://access.redhat.com/errata/RHSA-2026:3926>
- <https://access.redhat.com/errata/RHSA-2026:3947>
- <https://access.redhat.com/errata/RHSA-2026:3948>
- <https://access.redhat.com/errata/RHSA-2026:76128>
- <https://access.redhat.com/errata/RHSA-2026:76129>
- <https://access.redhat.com/errata/RHSA-2026:76130>
- <https://access.redhat.com/errata/RHSA-2026:76132>
- <https://access.redhat.com/errata/RHSA-2026:76134>
- <https://access.redhat.com/security/cve/CVE-2026-2092>

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-wmxr-6j5f-838p>, 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-wmxr-6j5f-838p/>. Everything for agents: <https://agentprime.io/llms.txt>.