{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.26.25"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "43947671ba9be8fb08b105f3539a112ee7a57ddc"
            }
          ],
          "repo": "https://github.com/qbee-io/transport",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-f9m7-vc86-p6jj"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22",
      "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55828.json"
  },
  "details": "qbee transport is a remote access transport protocol implementation. Prior to 1.26.25, the extractTar routine uses strictly lexical path validation that does not account for on-disk symlinks created earlier in the extraction process. A crafted tar archive can use a symlink chain to write or overwrite files one directory level above the intended extraction path. When qbee-agent performs the extraction with root privileges, this permits a root-privileged file write outside the intended destination. This issue is fixed in version 1.26.25.",
  "id": "CVE-2026-55828",
  "modified": "2026-09-17T03:30:45.097177194Z",
  "published": "2026-09-15T15:14:52.244Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55828.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/qbee-io/transport/security/advisories/GHSA-f9m7-vc86-p6jj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55828"
    },
    {
      "type": "FIX",
      "url": "https://github.com/qbee-io/transport/commit/43947671ba9be8fb08b105f3539a112ee7a57ddc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/qbee-io/transport/pull/19"
    }
  ],
  "schema_version": "1.9.0",
  "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": "qbee transport: Symlink-chain path traversal in tar extraction (one level outside destination)"
}