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New Deserialization Vulnerability in Ruby Workers Could Enable Full System Compromise

Cybersecuritynews •Abinaya • February 24, 2026

A critical Remote Code Execution (RCE) vulnerability has been identified in a Ruby background job processing system. The flaw stems from unsafe JSON deserialization, which allows untrusted input to be transformed into executable objects. This issue highlights the hidden dangers of deserialization in Ruby environments, where a single line of code can lead to deterministic […]

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Ruby Worker Deserialization Vulnerability Enables System Takeover A critical deserialization flaw in Ruby Workers has been identified, allowing attackers to convert benign JSON data into executable code, potentially leading to complete system compromise. This vulnerability was uncovered by security researcher NullSecurityX and affects systems utilizing Ruby Workers. 4 sources 52

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Ruby