CVE-2026-42077: 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…

PriorityP423medium5.2CVSS 3.1

AVLACHPRHUINSUCLILAH

EPSS

0.11%

1.5th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
evomap	evolver	< 1.69.3	1.69.3

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