{"id":"PYSEC-2026-2922","summary":"PraisonAI recipe registry publish path traversal allows out-of-root file write","details":"### Summary\n\nPraisonAI's recipe registry publish endpoint writes uploaded recipe bundles to a filesystem path derived from the bundle's internal `manifest.json` before it verifies that the manifest `name` and `version` match the HTTP route. A malicious publisher can place `../` traversal sequences in the bundle manifest and cause the registry server to create files outside the configured registry root even though the request is ultimately rejected with HTTP `400`.\n\nThis is an arbitrary file write / path traversal issue on the registry host. It affects deployments that expose the recipe registry publish flow. If the registry is intentionally run without a token, any network client that can reach the service can trigger it. If a token is configured, any user with publish access can still exploit it.\n\n### Details\n\nThe bug is caused by the order of operations between the HTTP handler and the registry storage layer.\n\n1. `RegistryServer._handle_publish()` in `src/praisonai/praisonai/recipe/server.py:370-426` parses `POST /v1/recipes/{name}/{version}`, writes the uploaded `.praison` file to a temporary path, and immediately calls:\n\n```python\nresult = self.registry.publish(tmp_path, force=force)\n```\n\n2. `LocalRegistry.publish()` in `src/praisonai/praisonai/recipe/registry.py:214-287` opens the uploaded tarball, reads `manifest.json`, and trusts the attacker-controlled `name` and `version` fields:\n\n```python\nname = manifest.get(\"name\")\nversion = manifest.get(\"version\")\nrecipe_dir = self.recipes_path / name / version\nrecipe_dir.mkdir(parents=True, exist_ok=True)\nbundle_name = f\"{name}-{version}.praison\"\ndest_path = recipe_dir / bundle_name\nshutil.copy2(bundle_path, dest_path)\n```\n\n3. Validation helpers already exist in the same file:\n\n```python\ndef _validate_name(name: str) -\u003e bool:\ndef _validate_version(version: str) -\u003e bool:\n```\n\nbut they are not called before the filesystem write.\n\n4. Only after `publish()` returns does the route compare the manifest values with the URL values:\n\n```python\nif result[\"name\"] != name or result[\"version\"] != version:\n    self.registry.delete(result[\"name\"], result[\"version\"])\n    return self._error_response(...)\n```\n\nAt that point the out-of-root artifact has already been created. The request returns an error, but the write outside the registry root remains on disk.\n\nVerified vulnerable behavior:\n\n- Request path: `/v1/recipes/safe/1.0.0`\n- Internal manifest name: `../../outside-dir`\n- Server response: HTTP `400`\n- Leftover artifact: `/tmp/praisonai-publish-traversal-poc/outside-dir-1.0.0.praison`\n\nThis demonstrates that the write occurs before the consistency check and rollback.\n\n### PoC\n\nRun the single verification script from the checked-out repository:\n\n```bash\ncd \"/Users/r1zzg0d/Documents/CVE hunting/targets/PraisonAI\"\npython3 tmp/pocs/poc.py\n```\n\nExpected vulnerable output:\n\n```text\n[+] Publish response status: 400\n{\n  \"ok\": false,\n  \"error\": \"Bundle name/version (../../outside-dir@1.0.0) doesn't match URL (safe@1.0.0)\",\n  \"code\": \"error\"\n}\n[+] Leftover artifact exists: True\n[+] Artifact under registry root: False\n[+] RESULT: VULNERABLE - upload was rejected, but an out-of-root artifact was still created.\n```\n\nThen verify the artifact manually:\n\n```bash\nls -l /tmp/praisonai-publish-traversal-poc/outside-dir-1.0.0.praison\nfind /tmp/praisonai-publish-traversal-poc -maxdepth 2 | sort\n```\n\nWhat the script does internally:\n\n1. Starts a local PraisonAI recipe registry server.\n2. Builds a malicious `.praison` bundle whose internal `manifest.json` contains `name = ../../outside-dir`.\n3. Uploads that bundle to the apparently safe route `/v1/recipes/safe/1.0.0`.\n4. Receives the expected `400` mismatch error.\n5. Confirms that `outside-dir-1.0.0.praison` was still written outside the configured registry directory.\n\n### Impact\n\nThis is a path traversal / arbitrary file write vulnerability in the recipe registry publish flow.\n\nImpacted parties:\n\n- Registry operators running the PraisonAI recipe registry service.\n- Any deployment that allows remote recipe publication.\n- Any environment where adjacent writable filesystem locations contain sensitive application data, service files, or staged content that could be overwritten or planted.\n\nSecurity impact:\n\n- Integrity impact is high because an attacker can create or overwrite files outside the registry root.\n- Availability impact is possible if the attacker targets adjacent runtime or application files.\n- The issue can be chained with other local loading or deployment behaviors if nearby files are later consumed by another component.\n\n### Remediation\n\n1. Validate `manifest.json` `name` and `version` before any path join or filesystem write. Reject path separators, `..`, absolute paths, and any value that fails the existing `_validate_name()` / `_validate_version()` checks.\n\n2. Resolve the final destination path and enforce that it remains under the configured registry root before calling `mkdir()` or `copy2()`. For example, compare the resolved destination against `self.recipes_path.resolve()`.\n\n3. Move the URL-to-manifest consistency check ahead of `self.registry.publish(...)`, or refactor `publish()` so it receives already-validated route parameters instead of trusting attacker-controlled manifest values for storage paths.","aliases":["CVE-2026-39308","GHSA-r9x3-wx45-2v7f"],"modified":"2026-07-13T16:33:04.011800914Z","published":"2026-07-13T14:36:49.014587Z","references":[{"type":"WEB","url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r9x3-wx45-2v7f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39308"},{"type":"PACKAGE","url":"https://github.com/MervinPraison/PraisonAI"},{"type":"WEB","url":"https://github.com/MervinPraison/PraisonAI/releases/tag/v4.5.113"},{"type":"PACKAGE","url":"https://pypi.org/project/praisonai"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-r9x3-wx45-2v7f"}],"affected":[{"package":{"name":"praisonai","ecosystem":"PyPI","purl":"pkg:pypi/praisonai"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.113"}]}],"versions":["0.0.1","0.0.10","0.0.11","0.0.12","0.0.13","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.19","0.0.2","0.0.20","0.0.21","0.0.22","0.0.23","0.0.24","0.0.25","0.0.26","0.0.27","0.0.28","0.0.29","0.0.3","0.0.30","0.0.31","0.0.32","0.0.33","0.0.34","0.0.35","0.0.36","0.0.37","0.0.38","0.0.39","0.0.4","0.0.40","0.0.41","0.0.42","0.0.43","0.0.44","0.0.45","0.0.46","0.0.47","0.0.48","0.0.49","0.0.5","0.0.50","0.0.52","0.0.53","0.0.54","0.0.55","0.0.56","0.0.57","0.0.58","0.0.59","0.0.59rc11","0.0.59rc2","0.0.59rc3","0.0.59rc5","0.0.59rc6","0.0.59rc7","0.0.59rc8","0.0.59rc9","0.0.6","0.0.61","0.0.64","0.0.65","0.0.66","0.0.67","0.0.68","0.0.69","0.0.7","0.0.70","0.0.71","0.0.72","0.0.73","0.0.74","0.0.8","0.0.9","0.1.0","0.1.1","0.1.10","0.1.2","0.1.3","0.1.4","0.1.5","0.1.6","0.1.7","0.1.8","0.1.9","1.0.0","1.0.1","1.0.10","1.0.11","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.8","1.0.9","2.0.0","2.0.1","2.0.10","2.0.11","2.0.12","2.0.13","2.0.14","2.0.15","2.0.16","2.0.17","2.0.18","2.0.19","2.0.2","2.0.20","2.0.22","2.0.23","2.0.24","2.0.25","2.0.26","2.0.27","2.0.28","2.0.29","2.0.3","2.0.30","2.0.31","2.0.32","2.0.33","2.0.34","2.0.35","2.0.36","2.0.37","2.0.38","2.0.39","2.0.40","2.0.41","2.0.42","2.0.43","2.0.44","2.0.45","2.0.46","2.0.47","2.0.48","2.0.49","2.0.5","2.0.50","2.0.51","2.0.53","2.0.54","2.0.55","2.0.56","2.0.57","2.0.58","2.0.59","2.0.6","2.0.60","2.0.61","2.0.62","2.0.63","2.0.64","2.0.65","2.0.66","2.0.67","2.0.68","2.0.69","2.0.7","2.0.70","2.0.71","2.0.72","2.0.73","2.0.74","2.0.75","2.0.76","2.0.77","2.0.78","2.0.79","2.0.8","2.0.80","2.0.81","2.0.9","2.1.0","2.1.1","2.1.4","2.1.5","2.1.6","2.2.1","2.2.10","2.2.11","2.2.12","2.2.13","2.2.14","2.2.15","2.2.16","2.2.17","2.2.18","2.2.19","2.2.2","2.2.20","2.2.21","2.2.22","2.2.24","2.2.25","2.2.26","2.2.27","2.2.28","2.2.29","2.2.3","2.2.30","2.2.31","2.2.32","2.2.33","2.2.34","2.2.35","2.2.36","2.2.37","2.2.38","2.2.39","2.2.4","2.2.40","2.2.41","2.2.42","2.2.43","2.2.44","2.2.45","2.2.46","2.2.47","2.2.48","2.2.49","2.2.5","2.2.50","2.2.51","2.2.52","2.2.53","2.2.54","2.2.55","2.2.56","2.2.57","2.2.58","2.2.59","2.2.6","2.2.60","2.2.61","2.2.62","2.2.63","2.2.64","2.2.65","2.2.66","2.2.67","2.2.68","2.2.69","2.2.7","2.2.70","2.2.71","2.2.72","2.2.73","2.2.74","2.2.75","2.2.76","2.2.77","2.2.78","2.2.79","2.2.8","2.2.80","2.2.81","2.2.82","2.2.83","2.2.84","2.2.86","2.2.87","2.2.88","2.2.89","2.2.9","2.2.90","2.2.91","2.2.93","2.2.95","2.2.96","2.2.97","2.2.98","2.2.99","2.3.0","2.3.1","2.3.10","2.3.11","2.3.12","2.3.13","2.3.14","2.3.15","2.3.16","2.3.18","2.3.19","2.3.2","2.3.20","2.3.21","2.3.22","2.3.23","2.3.24","2.3.25","2.3.26","2.3.27","2.3.28","2.3.29","2.3.3","2.3.30","2.3.31","2.3.32","2.3.33","2.3.34","2.3.35","2.3.36","2.3.37","2.3.38","2.3.39","2.3.4","2.3.40","2.3.41","2.3.42","2.3.43","2.3.44","2.3.45","2.3.46","2.3.47","2.3.48","2.3.49","2.3.5","2.3.50","2.3.51","2.3.52","2.3.53","2.3.54","2.3.55","2.3.56","2.3.57","2.3.58","2.3.59","2.3.6","2.3.60","2.3.61","2.3.62","2.3.63","2.3.64","2.3.65","2.3.66","2.3.67","2.3.68","2.3.69","2.3.7","2.3.70","2.3.71","2.3.72","2.3.73","2.3.74","2.3.75","2.3.76","2.3.77","2.3.78","2.3.79","2.3.8","2.3.80","2.3.81","2.3.82","2.3.83","2.3.84","2.3.85","2.3.86","2.3.87","2.3.9","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.5.0","2.5.1","2.5.2","2.5.3","2.5.4","2.5.5","2.5.6","2.5.7","2.6.0","2.6.1","2.6.2","2.6.3","2.6.4","2.6.5","2.6.6","2.6.7","2.6.8","2.7.0","2.8.3","2.8.4","2.8.5","2.8.6","2.8.7","2.8.8","2.8.9","2.9.0","2.9.1","2.9.2","3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.1.9","3.10.0","3.10.1","3.10.10","3.10.11","3.10.12","3.10.13","3.10.14","3.10.15","3.10.16","3.10.17","3.10.18","3.10.19","3.10.2","3.10.20","3.10.21","3.10.22","3.10.23","3.10.24","3.10.25","3.10.26","3.10.27","3.10.3","3.10.4","3.10.5","3.10.6","3.10.7","3.10.8","3.10.9","3.11.0","3.11.1","3.11.10","3.11.11","3.11.12","3.11.13","3.11.14","3.11.2","3.11.3","3.11.4","3.11.8","3.11.9","3.12.0","3.12.1","3.12.2","3.12.3","3.2.0","3.2.1","3.3.0","3.3.1","3.4.0","3.4.1","3.5.0","3.5.1","3.5.2","3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