Sensitive Cookie with Improper SameSite Attribute Affecting org.openidentityplatform.openam:openam-core package, versions [,16.1.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published16 Aug 2026
- disclosed14 Aug 2026
- creditwodzen
Introduced: 14 Aug 2026
CVE-2026-53660 (opens in a new tab)How to fix?
Upgrade org.openidentityplatform.openam:openam-core to version 16.1.1 or higher.
Overview
Affected versions of this package are vulnerable to Sensitive Cookie with Improper SameSite Attribute through the server default configuration and OAuth2/OIDC consent flow in serverdefaults.properties, ConsentRequiredResource, and CsrfProtection. An attacker can steal or abuse an authenticated console user’s session by exploiting a script-readable SSO cookie during same-origin XSS or by driving consent requests that rely on the cookie-derived CSRF value. The vulnerable code ships the session cookie with HttpOnly=false and reuses the iPlanetDirectoryPro token as the csrf value in OAuth/OIDC consent pages, so browser scripts can read the session identifier and the consent flow accepts it as the anti-CSRF token. This enables session theft and attacker-controlled OAuth consent grants, breaking the user’s OpenAM session and exposing account access and authorization decisions.