Vulnerability-Lookup

CVE-2026-39308 (GCVE-0-2026-39308)

Vulnerability from cvelistv5 – Published: 2026-04-07 16:48 – Updated: 2026-04-09 16:18

Title

PraisonAI recipe registry publish path traversal allows out-of-root file write

Summary

PraisonAI is a multi-agent teams system. Prior to 1.5.113, PraisonAI'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. This 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. This vulnerability is fixed in 1.5.113.

Severity ?

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

URL

Tags

https://github.com/MervinPraison/PraisonAI/securi…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	MervinPraison	PraisonAI	Affected: < 4.5.113

Show details on NVD website

JSON

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GHSA-R9X3-WX45-2V7F

Vulnerability from github – Published: 2026-04-06 23:09 – Updated: 2026-04-07 22:10

Summary

PraisonAI recipe registry publish path traversal allows out-of-root file write

Details

Summary

PraisonAI'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.

This 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.

Details

The bug is caused by the order of operations between the HTTP handler and the registry storage layer.

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:

result = self.registry.publish(tmp_path, force=force)

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:

name = manifest.get("name")
version = manifest.get("version")
recipe_dir = self.recipes_path / name / version
recipe_dir.mkdir(parents=True, exist_ok=True)
bundle_name = f"{name}-{version}.praison"
dest_path = recipe_dir / bundle_name
shutil.copy2(bundle_path, dest_path)

Validation helpers already exist in the same file:

def _validate_name(name: str) -> bool:
def _validate_version(version: str) -> bool:

but they are not called before the filesystem write.

Only after publish() returns does the route compare the manifest values with the URL values:

if result["name"] != name or result["version"] != version:
    self.registry.delete(result["name"], result["version"])
    return self._error_response(...)

At 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.

Verified vulnerable behavior:

Request path: /v1/recipes/safe/1.0.0
Internal manifest name: ../../outside-dir
Server response: HTTP 400
Leftover artifact: /tmp/praisonai-publish-traversal-poc/outside-dir-1.0.0.praison

This demonstrates that the write occurs before the consistency check and rollback.

PoC

Run the single verification script from the checked-out repository:

cd "/Users/r1zzg0d/Documents/CVE hunting/targets/PraisonAI"
python3 tmp/pocs/poc.py

Expected vulnerable output:

[+] Publish response status: 400
{
  "ok": false,
  "error": "Bundle name/version (../../outside-dir@1.0.0) doesn't match URL (safe@1.0.0)",
  "code": "error"
}
[+] Leftover artifact exists: True
[+] Artifact under registry root: False
[+] RESULT: VULNERABLE - upload was rejected, but an out-of-root artifact was still created.

Then verify the artifact manually:

ls -l /tmp/praisonai-publish-traversal-poc/outside-dir-1.0.0.praison
find /tmp/praisonai-publish-traversal-poc -maxdepth 2 | sort

What the script does internally:

Starts a local PraisonAI recipe registry server.
Builds a malicious .praison bundle whose internal manifest.json contains name = ../../outside-dir.
Uploads that bundle to the apparently safe route /v1/recipes/safe/1.0.0.
Receives the expected 400 mismatch error.
Confirms that outside-dir-1.0.0.praison was still written outside the configured registry directory.

Impact

This is a path traversal / arbitrary file write vulnerability in the recipe registry publish flow.

Impacted parties:

Registry operators running the PraisonAI recipe registry service.
Any deployment that allows remote recipe publication.
Any environment where adjacent writable filesystem locations contain sensitive application data, service files, or staged content that could be overwritten or planted.

Security impact:

Integrity impact is high because an attacker can create or overwrite files outside the registry root.
Availability impact is possible if the attacker targets adjacent runtime or application files.
The issue can be chained with other local loading or deployment behaviors if nearby files are later consumed by another component.

Remediation

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.
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().
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.

Severity ?

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.5.112"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "PraisonAI"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.5.113"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-39308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-06T23:09:19Z",
    "nvd_published_at": "2026-04-07T17:16:36Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\nPraisonAI\u0027s recipe registry publish endpoint writes uploaded recipe bundles to a filesystem path derived from the bundle\u0027s 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\u0027t 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.",
  "id": "GHSA-r9x3-wx45-2v7f",
  "modified": "2026-04-07T22:10:12Z",
  "published": "2026-04-06T23:09:19Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PraisonAI recipe registry publish path traversal allows out-of-root file write"
}

FKIE_CVE-2026-39308

Vulnerability from fkie_nvd - Published: 2026-04-07 17:16 - Updated: 2026-04-09 17:16

Severity ?

7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r9x3-wx45-2v7f
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r9x3-wx45-2v7f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PraisonAI is a multi-agent teams system. Prior to 1.5.113, PraisonAI\u0027s recipe registry publish endpoint writes uploaded recipe bundles to a filesystem path derived from the bundle\u0027s 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. This 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. This vulnerability is fixed in 1.5.113."
    }
  ],
  "id": "CVE-2026-39308",
  "lastModified": "2026-04-09T17:16:26.567",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-07T17:16:36.770",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r9x3-wx45-2v7f"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r9x3-wx45-2v7f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-39308 (GCVE-0-2026-39308)

GHSA-R9X3-WX45-2V7F

Summary

Details

PoC

Impact

Remediation

FKIE_CVE-2026-39308

Tags

Sightings

Nomenclature