CVE-2026-45051: critical vulnerability in OpenIdentityPlatform OpenAM
OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.7%
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be reachable and an attacker to have previously written controlled data to that attribute through delegated administration, provisioning, directory access, legacy REST self-registration, or unsafe configuration. When those non-default conditions hold, the data is deserialized before assertion verification and can execute a classpath gadget in the application server process. This issue is fixed in version 16.1.1.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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%