{
  "published": "2026-09-30T14:03:00Z",
  "modified": "2026-09-30T14:03:00Z",
  "schema_version": "1.7.5",
  "id": "CGA-gx8p-w25p-xx3v",
  "severity": [
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N"
    }
  ],
  "upstream": [
    "CVE-2026-76844",
    "GHSA-g84c-rxfj-3j2c",
    "GHSA-p3f5-w63m-mxph"
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/webpack-dev-middleware"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76844.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-wr3j-pwj9-hqq6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76844"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/webpack/webpack-dev-middleware"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Chainguard",
        "name": "gitlab-rails-ce-fips-18.11",
        "purl": "pkg:apk/chainguard/gitlab-rails-ce-fips-18.11?arch=x86_64"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "components": [
          {
            "component_name": "webpack-dev-middleware",
            "component_version": "5.3.4",
            "component_type": "npm",
            "component_location": "/srv/gitlab/yarn.lock",
            "component_purl": "pkg:npm/webpack-dev-middleware@5.3.4",
            "latest_event_status": "detection",
            "latest_event_timestamp": "2026-09-30T14:03:00Z"
          }
        ]
      }
    }
  ]
}