https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-15T06:32:14.976931+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-281283 EUVD-2026-281283 2026-10-15T06:32:15.020970+00:00 EUVD-2026-281283 https://cve.radiocsirt.org/vuln/fkie_cve-2026-33439 fkie_cve-2026-33439 2026-10-15T06:32:15.021005+00:00

Open Access Management (OpenAM) is an access management solution. Prior to 16.0.6, OpenIdentityPlatform OpenAM is vulnerable to pre-authentication Remote Code Execution (RCE) via unsafe Java deserialization of the jato.clientSession HTTP parameter. This bypasses the WhitelistObjectInputStream mitigation that was applied to the jato.pageSession parameter after CVE-2021-35464. An unauthenticated attacker can achieve arbitrary command execution on the server by sending a crafted serialized Java object as the jato.clientSession GET/POST parameter to any JATO ViewBean endpoint whose JSP contains <jato:form> tags (e.g., the Password Reset pages). This vulnerability is fixed in 16.0.6.

 https://cve.radiocsirt.org/vuln/ghsa-2cqq-rpvq-g5qj GHSA-2cqq-rpvq-g5qj — OpenIdentityPlatform OpenAM: Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM 2026-10-15T06:32:15.021041+00:00

Affected: Maven: org.openidentityplatform.openam:openam

## Summary

OpenIdentityPlatform OpenAM 16.0.5 (and likely earlier versions) is vulnerable to pre-authentication Remote Code Execution (RCE) via unsafe Java deserialization of the `jato.clientSession` HTTP parameter. This bypasses the `WhitelistObjectInputStream` mitigation that was applied to the `jato.pageSession` parameter after CVE-2021-35464.

An unauthenticated attacker can achieve arbitrary command execution on the server by sending a crafted serialized Java object as the `jato.clientSession` GET/POST parameter to any JATO ViewBean endpoint whose JSP contains `<jato:form>` tags (e.g., the Password Reset pages).

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## Vulnerability Details

### Background

CVE-2021-35464 identified that the `jato.pageSession` HTTP parameter was deserialized without class filtering, allowing pre-auth RCE.

OpenIdentityPlatform OpenAM mitigated this by introducing `WhitelistObjectInputStream` in `ConsoleViewBeanBase.deserializePageAttributes()`, which restricts `jato.pageSession` deserialization to a hardcoded whitelist of ~40 safe classes.

However, the JATO framework contains a **second deserialization entry point** — `jato.clientSession` — handled by `ClientSession.deserializeAttributes()`. This code path was **not patched** and still uses the unfiltered `Encoder.deserialize()` → `ApplicationObjectInputStream`, which performs `ObjectInputStream.readObject()` with no class whitelist.

### Root Cause

``` ClientSession.deserializeAttributes() → Encoder.deserialize() → Applicati…