CVE-2026-53660

UNKNOWN 0.0

OpenAM Insecure SSO Cookie Initialization

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

Open 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.

CWE	CWE-1004 CWE-1188 CWE-1275
Vendor	openidentityplatform
Product	openam
Published	Sep 15, 2026
Last Updated	Sep 15, 2026

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Affected Versions

OpenIdentityPlatform / OpenAM

< 16.1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-fpmh-vx4h-xc33 github.com: https://github.com/OpenIdentityPlatform/OpenAM/commit/2af597267e6eb9302f75445c2c726f9b84f62966 github.com: https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1