Severity:

CRITICAL RISK

(9.8)

Pre-Authentication Java Deserialization RCE (CWE-502) in OpenAM jato.clientSession Parameter

CVE-2026-33439

Published:

Apr 7, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Vulnerability Type

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Pre-authentication Remote Code Execution on the OpenAM server

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Pre-authentication Remote Code Execution on the OpenAM server

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.