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Vulnerability Intelligence Report
OpenAM: Unauthenticated Remote Code Execution via Class.forName in AuthXMLUtils.createCustomCallback

CVE-2026-62379

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.

No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:1.09%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—

Weaknesses (CWE)

CWE-94 ↗CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-470 ↗CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Affected Products & Versions

Vendor Product Affected Versions
OpenIdentityPlatform OpenAM < 16.1.2 (affected)

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

EPSS Score
1.089%

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityGitHub, Inc. · Vendor · USA
Reserved2026-07-13T22:04:59
Published2026-09-15T09:45:52
Last Updated2026-09-15T14:21:34

LINK COPIED TO CLIPBOARD