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

Quick assessment

Affected
OpenAM consortium OpenAM (OpenAM Consortium Edition)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenAM（OpenAM 联盟版）14.0.5 及更早版本在 Liberty ID-FF 服务提供者的单点登录流程中存在一个开放重定向漏洞（CWE-601）。该漏洞源于 端点的 参数在未经验证的情况下被直接存储为 Liberty ID-FF 认证请求的 字段；当用户在身份提供商处完成单点登录后，断言消费者服务（Assertion Consumer Service）会将浏览器重定向至该参数指定的值。远程未认证攻击者可诱导用户访问精心构造的 URL，待用户完成身份认证后，将其重定向至任意网站，从而可能被用于网络钓鱼攻

CVSS 6.1 · Medium
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I. Basic Information for CVE-2026-121825

Vulnerability Information
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Vulnerability Title
Open redirect in the Liberty ID-FF service provider single sign-on flow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenAM consortium OpenAM (OpenAM Consortium Edition) 14.0.0 ~ 14.0.6 -

II. Public POCs for CVE-2026-121825

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III. Intelligence Information for CVE-2026-121825

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Other References for CVE-2026-121825 (2)

IV. Related Vulnerabilities

Same product: OpenAM (OpenAM Consortium Edition)
Same vendor: OpenAM consortium
Same weakness: CWE-601