CVE-2026-53660: XSS
Summary
Description An Insecure Default Initialization of Resource (CWE-1188) issue in the OpenAM default configuration ships the iPlanetDirectoryPro SSO cookie with HttpOnly=false. Also, the iPlanetDirectoryPro SSO cookie is used as a CSRF token in OAuth/OIDC flows. This affects OpenAM Community Edition through version 16.0.6 and was patched in version 16.1.1.
Impact A single click on an attacker link may yield full SSO session theft of any authenticated console user when chained with any other same-origin XSS in the OpenAM origin. The missing SameSite default also widens the CSRF surface. Also, because the consent flow reuses the SSO cookie as its CSRF token, any XSS in the OpenAM origin both steals the session and completes attacker-driven OAuth consent grants in one step.
Patch This has been patched in OpenAM Community Edition version 16.1.1. Users are encouraged to update to the latest release.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
maven/org.openidentityplatform.openam:openam-coreto a version that resolves this vulnerability.Fixed in 16.1.1 - Upgrade
Upgrade
OpenAM Community Editionto a version that resolves this vulnerability.Fixed in 16.1.1
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53660?
The severity of CVE-2026-53660 is rated at 60.
How do I fix CVE-2026-53660?
To fix CVE-2026-53660, update the OpenAM configuration to ensure that the `iPlanetDirectoryPro` cookie has `HttpOnly` set to true.
What impact does CVE-2026-53660 have on OpenAM?
CVE-2026-53660 can expose users to Cross-Site Request Forgery (CSRF) attacks due to insecure cookie configurations.
Is CVE-2026-53660 related to XSS vulnerabilities?
Yes, CVE-2026-53660 can contribute to Cross-Site Scripting (XSS) vulnerabilities by allowing unauthorized access to session information.
What components of OpenAM are affected by CVE-2026-53660?
CVE-2026-53660 affects the default configuration of OpenAM, particularly the `iPlanetDirectoryPro` SSO cookie.