CyberRota Analysis
AI-GeneratedThe vulnerability affects Seroval versions 0.12.0 to 1.6.2, allowing attacker-controlled JSON to invoke code unexpectedly through deserialization of a fulfilled Promise. This critical flaw can lead to arbitrary code execution in applications utilizing plugin-capable Seroval releases. Organizations using affected versions should prioritize upgrading to version 1.6.2 to mitigate this severe risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. From 0.12.0 until 1.6.2, fromJSON deserialization of a fulfilled Promise control node can pass a plugin-produced callable-bearing thenable to a native Promise resolver. ECMAScript thenable assimilation then invokes the callable unexpectedly, allowing attacker-controlled JSON to trigger code in applications using plugin-capable Seroval releases. This path bypasses the Promise resolver type-confusion remediation in version 1.5.3 for CVE-2026-59940 because the unexpected invocation occurs through native Promise settlement after the referenced value is deserialized. This issue is fixed in version 1.6.2.