OpenIdentityPlatform OpenAM up to 16.1.1 Authservice PLL Endpoint deserialization

Summaryinfo

A vulnerability, which was classified as very critical, was found in OpenIdentityPlatform OpenAM up to 16.1.1. This affects an unknown part of the component Authservice PLL Endpoint. Executing a manipulation can lead to deserialization. This vulnerability appears as CVE-2026-62379. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenIdentityPlatform OpenAM up to 16.1.1. It has been declared as very critical. This vulnerability affects some unknown functionality of the component Authservice PLL Endpoint. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.2, the pre-authentication /authservice PLL endpoint accepts a CustomCallback XML element whose className value selects an arbitrary Java class for AuthXMLUtils to load and instantiate without verifying that it implements DSAMECallbackInterface. Default configurations expose the endpoint without authentication, allowing attacker-controlled class initialization and unsafe deserialization of a serialized Subject value to execute code in the server process. Enabling sunRemoteAuthSecurityEnabled does not prevent the vulnerable parsing and instantiation because its check occurs later. This issue is fixed in version 16.1.2.

The advisory is available at github.com. This vulnerability was named CVE-2026-62379 since 07/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/15/2026).

Upgrading to version 16.1.2 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• OpenIdentityPlatform

Name

• OpenAM

Version

• 16.1.0
• 16.1.1

Website

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

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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