{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42077", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-23T19:17:30.565Z", "datePublished": "2026-05-04T16:50:15.167Z", "dateUpdated": "2026-05-04T16:50:15.167Z"}, "containers": {"cna": {"title": "Evolver: Prototype Pollution via `Object.assign()` in mailbox store operations", "problemTypes": [{"descriptions": [{"cweId": "CWE-1321", "lang": "en", "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4"}, {"name": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/EvoMap/evolver/releases/tag/v1.69.3"}], "affected": [{"vendor": "EvoMap", "product": "evolver", "versions": [{"version": "< 1.69.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-04T16:50:15.167Z"}, "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."}], "source": {"advisory": "GHSA-2cjr-5v3h-v2w4", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-42077", "lastModified": "2026-05-04T17:16:24.587", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-04T17:16:24.587", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-05-04T18:45:06.427515+00:00", "updated": "2026-05-04T19:15:06.892767+00:00", "vendors": []}