CVE-2026-25754
📋 TL;DR
A prototype pollution vulnerability in AdonisJS multipart form-data parsing allows remote attackers to manipulate object prototypes at runtime. This could lead to denial of service, data corruption, or remote code execution. All AdonisJS applications using vulnerable versions are affected.
💻 Affected Systems
- AdonisJS
- AdonisJS Bodyparser
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or service disruption.
Likely Case
Denial of service, application instability, or data corruption through prototype manipulation.
If Mitigated
Limited impact with proper input validation and security controls in place.
🎯 Exploit Status
Exploitation requires sending specially crafted multipart form-data payloads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.1.3 or 11.0.0-next.9
Vendor Advisory: https://github.com/adonisjs/core/security/advisories/GHSA-f5x2-vj4h-vg4c
Restart Required: Yes
Instructions:
1. Update AdonisJS bodyparser package to version 10.1.3 or 11.0.0-next.9. 2. Run npm update @adonisjs/bodyparser. 3. Restart the application server.
🔧 Temporary Workarounds
Input Validation Middleware
allImplement custom middleware to validate and sanitize multipart form-data inputs before processing.
Rate Limiting
allImplement rate limiting on form submission endpoints to reduce attack surface.
🧯 If You Can't Patch
- Implement WAF rules to block suspicious multipart form-data patterns.
- Disable or restrict multipart form-data endpoints if not required.
🔍 How to Verify
Check if Vulnerable:
Check package.json for @adonisjs/bodyparser version. Vulnerable if version <10.1.3 or between 11.0.0-next.1 and 11.0.0-next.8.Check Version:
npm list @adonisjs/bodyparserVerify Fix Applied:
Verify @adonisjs/bodyparser version is 10.1.3 or 11.0.0-next.9 in package.json and node_modules.📡 Detection & Monitoring
Log Indicators:
- Unusual multipart form-data submissions
- Application crashes or errors during form processing
- Suspicious payload patterns in request logs
Network Indicators:
- Large or malformed multipart form-data requests
- Repeated form submissions with unusual parameters
SIEM Query:
source="application_logs" AND ("multipart" OR "form-data") AND (error OR crash OR exception)