23 Oct 2026 15:48:27 UTC
OpenAM Insecure SSO Cookie Initialization
cve-program · CVE-2026-53660 · Published
CVE-2026-53660
OpenAM Insecure SSO Cookie Initialization
CVSS 4.0 7.4 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-53660
PublishedOpen Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the default configuration initializes the iPlanetDirectoryPro SSO cookie with HttpOnly disabled and without a protective SameSite default, and OAuth and OpenID Connect consent flows reuse that cookie through CsrfProtection as a CSRF token. When combined with same-origin cross-site scripting and a user following an attacker-controlled link, the cookie can be read and reused to steal the SSO session and complete attacker-driven consent grants. This issue is fixed in version 16.1.1.
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Exploitation and risk
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Risk history
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