DocArray, Prototype Pollution, CVE-2025-XXXXX (Critical)

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How the CVE Works:

The vulnerability (CVE-2025-XXXXX) in DocArray (≤ v0.40.1) stems from improper handling of object attributes in the `getitem` function within docarray/data/torch_dataset.py. Attackers can exploit prototype pollution by injecting malicious properties into JavaScript objects, modifying their prototype chain. This allows arbitrary code execution or privilege escalation via the Web API. Since the flaw is remotely exploitable, unpatched systems risk unauthorized access, data manipulation, or server compromise. The public disclosure increases exploit likelihood, urging immediate mitigation.

DailyCVE Form:

Platform: DocArray
Version: ≤ 0.40.1
Vulnerability: Prototype Pollution
Severity: Critical
Date: May 25, 2025

Prediction: Patch expected by June 10, 2025

What Undercode Say:

Exploitation:

1. Payload Example:

{"<strong>proto</strong>": {"isAdmin": true}}

2. CURL Attack:

curl -X POST http://target/api/data -H "Content-Type: application/json" -d '{"<strong>proto</strong>": {"exec": "malicious_code"}}'

3. Impact:

  • Arbitrary code execution
  • Privilege escalation
  • Data corruption

Protection:

1. Patch: Upgrade to DocArray > 0.40.1.

2. Sanitization:

def sanitize_input(data):
if "<strong>proto</strong>" in data:
raise ValueError("Malicious payload detected")

3. Node.js Mitigation:

const fixedObj = Object.create(null); // Null prototype

4. WAF Rules:

if ($request_body ~ "<strong>proto</strong>") { return 403; }

5. Log Monitoring:

grep -r "<strong>proto</strong>" /var/log/web_api.log

Analytics:

  • Attack Surface: Web APIs accepting JSON.
  • Exploitability: High (public PoCs available).
  • Patch Urgency: Critical (active exploitation likely).

Detection:

import json
def check_pollution(request):
return "<strong>proto</strong>" in json.loads(request.data)

References:

  • GitHub Advisory: GHSA-xxxx-xxxx-xxxx
  • NVD: CVE-2025-XXXXX

Sources:

Reported By: github.com
Extra Source Hub:
Undercode

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