PocketFlow - Path Traversal in pocketflow-coding-agent Cookbook Example File Tools

{
  "id": "c02e89c29f9e1b1396b0f67f585974b37efcd132acc72cd7a39e6b294a92acf0",
  "url": "https://osv.dev/vulnerability/CVE-2026-55747",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "PocketFlow - Path Traversal in pocketflow-coding-agent Cookbook Example File Tools",
    "summary": "The pocketflow-coding-agent cookbook example in The-Pocket/PocketFlow implements a helper as a thin os.path.join(workdir, p) wrapper with no canonicalization or containment check, used unguarded by the ReadFile, ListFiles, PatchRead, and PatchApply file-access tools. Severity reflects that this affects an illustrative cookbook example rather than a core library API; applications that copy this pattern into production are affected.",
    "evidence": "osv:CVE-2026-55747",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-55747",
      "aliases": [
        "CVE-2026-55747"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/the-pocket/pocketflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55747.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.252149771Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55747.json",
        "https://github.com/The-Pocket/PocketFlow",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-55747"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "TuranSec",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55747.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-55747",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 510119,
  "published_at": "2026-08-05T06:58:41.309+00:00"
}