CVE-2026-42077

{"id": "CVE-2026-42077", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 0.5}]}, "published": "2026-05-04T17:16:24.587", "references": [{"url": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3", "source": "security-advisories@github.com"}, {"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4", "source": "security-advisories@github.com"}, {"url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-05-07T15:46:40.943", "sourceIdentifier": "security-advisories@github.com"}