OpenAM <= 16.0.5 - Pre-Auth RCE via jato.clientSession Deserialization

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...

CVE-2026-33439-PoC

CVE-2026-33439 — OpenAM 预认证 RCE（回显模式） 命令输出直接显示在 HTTP 响应中——无需 DNS 外带或 OOB。 利用 com.iplanet.jato.RequestManager.getRequestContext 在反序列化期间访问活动的 JATO ThreadLocal 请求/响应。适用于 Java 21+，在经典 Tomcat 回显技术 （Thread.target / ThreadGroup.threads 遍历）失效的环境中有效。 前提条件 JDK 11+（运行时需要 javac 编译 translet） 目标 OpenAM 的...

CVE-2026-33439-OpenAM

CVE-2026-33439 是 OpenAM（16.0.6）中一个未经身份验证的不安全反序列化问题，影响 JATO ViewBean 端点。公开公告提到了 JATO 端点，但未列举可访问的路由。本研究确定 /openam/ui/PWResetUserValidation 是一个可访问的预认证 JATO 端点。...

CVE-2026-33439

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...

CVE-2026-33439

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...

CVE-2026-33439

CVE-2026-33439 : OpenAM/OpenIdentityPlatform before 16.0.6 is vulnerable to pre-authentication remote code execution via unsafe Java deserialization of the jato.clientSession parameter. An unauthenticated attacker can send a crafted serialized Java object to any JATO ViewBean endpoint (e.g., Pass...

CVE-2026-33439 Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM

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...

CVE-2026-33439 Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM

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...

CVE-2026-33439

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...

OpenIdentityPlatform OpenAM: Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in 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...

GHSA-2CQQ-RPVQ-G5QJ OpenIdentityPlatform OpenAM: Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in 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...

EUVD-2026-19941

OpenIdentityPlatform OpenAM: Pre-Authentication Remote Code Execution via jato.clientSession Deserialization in OpenAM...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the jato.clientSession HTTP parameter of the deserializeAttributes function. An attacker can execute arbitrary code on the server by sending a crafted serialized Java object to endpoints that process...

OpenAM 代码问题漏洞

OpenAM is an integrated access management solution developed by the OpenAM Consortium. It provides authentication, authorization, and federation features. Versions of OpenAM prior to 16.0.6 have code vulnerabilities due to an insecure Java deserialization issue with the jato.clientSession...

PT-2026-30917

Name of the Vulnerable Software and Affected Versions OpenAM versions prior to 16.0.6 Description Open Access Management OpenAM is an access management solution. An unauthenticated attacker can achieve arbitrary command execution on the server through unsafe Java deserialization. This occurs when...

CVE-2021-35464

ForgeRock AM server before 7.0 has a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages. The exploitation does not require authentication, and remote code execution can be triggered by sending a single crafted /ccversion/ request to the server. The vulnerabilit...

Metasploit Wrap-Up

Eternal Blue improvements Prior to this release Metasploit offered two separate exploit modules for targeting MS17-010, dubbed Eternal Blue. The Ruby module previously only supported Windows 7, and a separate ms17010eternalbluewin8 Python module would target Windows 8 and above. Now Metasploit...

ForgeRock AM远程代码执行漏洞（CVE-2021-35464）

Pre-auth RCE in ForgeRock OpenAM CVE-2021-35464 Michael Stepankin Researcher @artsploit Published: 29 June 2021 at 11:23 UTC Updated: 29 June 2021 at 18:15 UTC While participating in one private bug bounty program, I discovered a pre-auth RCE in ForgeRock OpenAM server - a popular access manageme...

ForgeRock Access Manager/OpenAM Pre-Auth Remote Code Execution Vulnerability (CVE-2021-35464): What You Need To Know

On June 29, 2021, security researcher Michael Stepankin @artsploit posted details of CVE-2021-35464, a pre-auth remote code execution RCE vulnerability in ForgeRock Access Manager identity and access management software. ForgeRock front-ends web applications and remote access solutions in many...

U.S. Dept Of Defense: Pre-auth RCE in ForgeRock OpenAM (CVE-2021-35464)

A vulnerability in ForgeRock OpenAM allowed unauthenticated remote code execution due to unsafe Java deserialization in the Jato framework. The vulnerability, tracked as CVE-2021-35464, could be exploited by sending a crafted request to the /openam/ccversion/Version endpoint with a malicious...