Java Deserialization Vulnerability

Anandhu Krishnan
Published on
14 May 2024


Java Serialization appears to be in use. If not properly validated, an attacker could send a specially crafted object, leading to a dangerous Remote Code Execution. A magic sequence identifying Java Serialized Objects (JSO) has been detected (Base64: rO0AB, Raw: 0xac, 0xed, 0x00, 0x05).


Deserialization of untrusted data is inherently dangerous and should be avoided.

Automated human-like penetration testing for your web apps & APIs
Teams using Beagle Security are set up in minutes, embrace release-based CI/CD security testing and save up to 65% with timely remediation of vulnerabilities. Sign up for a free account to see what it can do for you.

Written by
Anandhu Krishnan
Anandhu Krishnan
Lead Engineer
Find website security issues in a flash
Improve your website's security posture with proactive vulnerability detection.
Free website security assessment