CVSS v3.1
5.2
EPSS
0.11%
Published
May 4, 2026
Modified
May 7, 2026
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
Evolver is a GEP-powered self-evolving engine for AI agents. Prior to version 1.69.3, a prototype pollution vulnerability in the mailbox store module allows attackers to modify the behavior of all JavaScript objects by injecting malicious properties into Object.prototype. The vulnerability exists in the _applyUpdate() and _updateRecord() functions which use Object.assign() to merge user-controlled data without filtering dangerous keys like __proto__, constructor, or prototype. This issue has been patched in version 1.69.3.
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:HWeaknesses (CWE)
References (3)