OpenAM: Unauthenticated Remote Code Execution via Class.forName in AuthXMLUtils.createCustomCallback
Published Sep 15, 2026
9.8
CRITICALCVSS 3.1
EPSS 1.07%
Description
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.
Affected products
-
- Version < 16.1.2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OpenIdentityPlatform | OpenAM | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78354 Advisory
- https://github.com/OpenIdentityPlatform/OpenAM/commit/edcf968cad91a78b932dba4ad559ef94cbf35f5a x_refsource_MISC
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.2 x_refsource_MISC
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-wg5r-wc3x-39vc x_refsource_CONFIRM
- https://github.com/advisories/GHSA-wg5r-wc3x-39vc Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78354 | Advisory | |
| https://github.com/OpenIdentityPlatform/OpenAM/commit/edcf968cad91a78b932dba4ad559ef94cbf35f5a | x_refsource_MISC | |
| https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.2 | x_refsource_MISC | |
| https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-wg5r-wc3x-39vc | x_refsource_CONFIRM | |
| https://github.com/advisories/GHSA-wg5r-wc3x-39vc | Advisory |
Change history (0)
No recorded changes yet.