{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "go.qbee.io/transport"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.26.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-55828"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-19T21:15:31Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nThe go.qbee.io/transport library is affected by a symlink-chain path traversal vulnerability in its extractTar routine. The library\u0027s path validation is strictly lexical and fails to account for on-disk symlinks created earlier in the extraction process. Consequently, a crafted tar archive can be used to write or overwrite files one directory level above the intended extraction path. In the case of qbee-agent, which runs with root privileges, this vulnerability permits a root-privileged file write outside the intended destination.\n\n### Patches\n\nThe issue has been addressed in version v1.26.25",
  "id": "GHSA-f9m7-vc86-p6jj",
  "modified": "2026-06-19T21:15:31Z",
  "published": "2026-06-19T21:15:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/qbee-io/transport/security/advisories/GHSA-f9m7-vc86-p6jj"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/qbee-io/transport"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "go.qbee.io/transport: Symlink-chain path traversal in tar extraction (one level outside destination)"
}