{
  "published": "2026-07-22T19:18:04Z",
  "modified": "2026-07-24T01:19:41Z",
  "schema_version": "1.7.5",
  "id": "CGA-fw29-3866-8m3f",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
    }
  ],
  "upstream": [
    "CVE-2026-59879",
    "GHSA-v56q-mh7h-f735"
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/immutable-js/immutable-js/releases/tag/v4.3.9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/immutable-js/immutable-js/releases/tag/v5.1.8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59879.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/immutable-js/immutable-js/security/advisories/GHSA-v56q-mh7h-f735"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59879"
    },
    {
      "type": "FIX",
      "url": "https://github.com/immutable-js/immutable-js/commit/a1a1ee412dcaa380ab325196283d06594ffe4b84"
    },
    {
      "type": "FIX",
      "url": "https://github.com/immutable-js/immutable-js/commit/f0bc997d8eb9886aff2236635aa210a95a04304a"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Chainguard",
        "name": "gitlab-rails-ce-18.10",
        "purl": "pkg:apk/chainguard/gitlab-rails-ce-18.10?arch=x86_64"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "components": [
          {
            "architecture": "x86_64",
            "component_name": "immutable",
            "component_version": "4.1.0",
            "component_type": "npm",
            "component_location": "/srv/gitlab/yarn.lock",
            "component_purl": "pkg:npm/immutable@4.1.0",
            "latest_event_status": "fix_not_planned",
            "latest_event_timestamp": "2026-07-24T01:19:41Z"
          }
        ]
      }
    }
  ]
}