FKIE_CVE-2026-42077

Vulnerability from fkie_nvd - Published: 2026-05-04 17:16 - Updated: 2026-05-07 15:46
Severity ?
5.2 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/EvoMap/evolver/releases/tag/v1.69.3
security-advisories@github.comhttps://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4
Impacted products
Vendor Product Version
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{
  "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": "2026-05-07T15:46:40.943",
  "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"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/EvoMap/evolver/security/advisories/GHSA-2cjr-5v3h-v2w4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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