OpenIdentityPlatform OpenAM up to 16.1.0 Push Notification SNS Callback SnsMessageResource Class.forName blob keys deserialization

Summaryinfo

A vulnerability described as critical has been identified in OpenIdentityPlatform OpenAM up to 16.1.0. This impacts the function Class.forName of the file SnsMessageResource of the component Push Notification SNS Callback. The manipulation of the argument blob keys results in deserialization. This vulnerability is cataloged as CVE-2026-45794. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in OpenIdentityPlatform OpenAM up to 16.1.0. Affected is the function Class.forName of the file SnsMessageResource of the component Push Notification SNS Callback. The manipulation of the argument blob keys with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the anonymous Push Notification SNS callback handled by SnsMessageResource falls back to a CTS predicate blob after a messageId expires from the in-memory dispatcher, treats top-level blob keys as Java class names for Class.forName, and deserializes attacker-controlled JSON through Jackson. A low-privileged user who starts Push Registration and obtains the messageId, shared secret, and challenge can wait for expiry, replace the persistent blob through anonymous callbacks, and trigger class loading and construction in the OpenAM JVM. The primitive can cause classpath-dependent process execution, file writes, or denial of service, although command execution was not confirmed on the tested stock classpath. This issue is fixed in version 16.1.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-45794 since 05/13/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 16.1.1 eliminates this vulnerability.

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Productinfo

Vendor

• OpenIdentityPlatform

Name

• OpenAM

Version

• 16.0
• 16.1.0

Website

• Product: https://github.com/OpenIdentityPlatform/OpenAM/

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