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CVE-2026-45049— OpenAM Session Hijacking via CDSSO

Quick assessment

Affected
OpenIdentityPlatform OpenAM
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.

Open Access Management（OpenAM）是一种访问管理解决方案。在 16.1.1 版本之前， （ ）Servlet 允许已登录用户的原始 OpenAM 会话令牌被 POST 到攻击者控制的 URL。攻击者若诱使已认证的受害者访问精心构造的 URL，即可获取其会话凭证，进而可能劫持该会话。此漏洞的利用前提是部署环境中启用了 （这在多域部署中很常见），且未配置默认的安全防护设置。该问题已在 16.1.1 版本中修复。

CVSS 8.3 · High
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I. Basic Information for CVE-2026-45049

Vulnerability Information
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Vulnerability Title
OpenAM Session Hijacking via CDSSO
Source: CVE Program / CVE List V5
Vulnerability Description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the `Cross-Domain Single Sign-On` (`CDSSO`) servlet allows a logged-in user's raw OpenAM session token to be POSTed to an attacker-controlled URL. An attacker who induces an authenticated victim to visit a crafted URL can receive the session credential and potentially hijack the session. Deployments must have `CDSSO` enabled, as is common in multi-domain deployments, and exploitation is additionally gated on a non-default configuration being absent. This issue is fixed in version 16.1.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过发送数据的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenIdentityPlatform OpenAM < 16.1.1 -

II. Public POCs for CVE-2026-45049

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III. Intelligence Information for CVE-2026-45049

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Vendor Pages for CVE-2026-45049 (1)

Other References for CVE-2026-45049 (2)

IV. Related Vulnerabilities

Same product: OpenAM
Same vendor: OpenIdentityPlatform
Same weakness: CWE-201