PraisonAI has an Arbitrary File Write (Zip Slip) in Templates Extraction

{
  "id": "4ac752f2c308397bfb2c9a6a0ba41ace139f93269ea33b64012eb64dda429559",
  "url": "https://osv.dev/vulnerability/CVE-2026-39307",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "PraisonAI has an Arbitrary File Write (Zip Slip) in Templates Extraction",
    "summary": "PraisonAI is a multi-agent teams system. Prior to 1.5.113, The PraisonAI templates installation feature is vulnerable to a \"Zip Slip\" Arbitrary File Write attack. When downloading and extracting template archives from external sources (e.g., GitHub), the application uses Python's zipfile.extractall() without verifying if the files within the archive resolve outside of the intended extraction directory. This vulnerability is fixed in 1.5.113.",
    "evidence": "osv:CVE-2026-39307",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-39307",
      "aliases": [
        "CVE-2026-39307",
        "GHSA-4ph2-f6pf-79wv",
        "PYSEC-2026-2899"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mervinpraison/praisonai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d80bff2d9aee7676981349b7e95290edc0de0f56"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.5.113"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "4.5.112"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
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      ],
      "modified": "2026-10-28T02:30:26.260115828Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39307.json",
        "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4ph2-f6pf-79wv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39307"
      ],
      "provider_metadata": {
        "cwe_ids": [
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        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39307.json"
      }
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        "value": "CVE-2026-39307",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492920,
  "published_at": "2026-04-07T16:49:29.885+00:00"
}