CVE-2026-42077
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
20/100
Published: 2026-05-04
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
High
UI:
None
S:
Unchanged
C:
Low
I:
Low
A:
High
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.