CVE-2026-42077

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Source
https://cve.org/CVERecord?id=CVE-2026-42077
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42077.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42077
Aliases
Published
2026-05-04T16:50:15.167Z
Modified
2026-07-08T08:03:12.694672811Z
Severity
  • 5.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
Summary
Evolver: Prototype Pollution via `Object.assign()` in mailbox store operations
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1321"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42077.json"
}
References

Affected packages

Git / github.com/evomap/evolver

Affected ranges

Type
GIT
Repo
https://github.com/evomap/evolver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d6bc80bbdab21b03879bb1c69578696d046c597c
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.69.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.66.0
v1.67.0
v1.67.1
v1.67.2
v1.67.4
v1.67.6
v1.68.0-beta.1
v1.68.0-beta.2
v1.69.0
v1.69.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42077.json"