CVE-2026-53660: high-severity vulnerability in OpenIdentityPlatform OpenAM
OpenAM Insecure SSO Cookie Initialization
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 0.4%
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.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
OpenIdentityPlatform · OpenAMRelated CVEs — OpenIdentityPlatform OpenAM
In the same product, most dangerous first.
CVE-2026-33439CRITICALPre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAMEPSS 9.3%CVE-2024-41667HIGHOpenAM FreeMarker template injectionEPSS 3.5%CVE-2023-37471CRITICALUser impersonation using SAMLv1.x SSO in Open Access Management EPSS 1.3%CVE-2026-62379CRITICALOpenAM: Unauthenticated Remote Code Execution via Class.forName in AuthXMLUtils.createCustomCallbackEPSS 1.1%CVE-2026-46619CRITICALOpenAM Authentication Bypass via MSISDN LDAP InjectionEPSS 1.0%CVE-2026-62263CRITICALOpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypassEPSS 0.9%