CVE-2026-121825 Open redirect in the Liberty ID-FF service provider single sign-on flow

Medium 5.1 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-121825?

CVE-2026-121825 is a medium-severity vulnerability in OpenAM (OpenAM Consortium Edition), published on 9 Nov 2026.

Official description

OpenAM (OpenAM Consortium Edition) 14.0.5 and earlier contains an open redirect vulnerability (CWE-601) in the Liberty ID-FF service provider single sign-on flow. The goto parameter of the /preLogin endpoint is stored as the RelayState of the Liberty ID-FF authentication request without validation, and after the user completes single sign-on at the identity provider, the assertion consumer service redirects the browser to that value. A remote unauthenticated attacker can induce a user to access a crafted URL and, after the user authenticates, redirect the user to an arbitrary website, which may be used for phishing. Only deployments in which a Liberty ID-FF hosted service provider is configured are affected; Liberty ID-FF is not configured by default. This issue is fixed in 14.0.6, which disables the legacy Liberty ID-FF endpoints.

Weakness: CWE-601

Which versions are affected by CVE-2026-121825?

How do I fix CVE-2026-121825?

No fix has been published for CVE-2026-121825 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-121825 being exploited?

There is no known exploitation of CVE-2026-121825 in the wild and no public exploit code.

Sources

Also known as GHSA-cmgw-57mx-4pqx.

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