CVE-2026-42077

MEDIUM EPSS 1.5%
Published May 4, 20261mo ago · Modified Jun 17, 20262w ago
5.2 CVSS 3.1
Medium
Find Similar
Published May 4, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.2
Exploitability
0.5
Impact
4.7
Vector string
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H
Attack Vector Local
Attack Complexity High
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
1.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-1321

References 2

  • github.com https://github.com/EvoMap/evolver/releases/tag/v1.69.3
  • github.com https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.