CVE-2025-12816
📋 TL;DR
An interpretation conflict vulnerability in node-forge versions 1.3.1 and earlier allows attackers to craft malicious ASN.1 structures that desynchronize schema validations, potentially bypassing cryptographic verifications and security decisions. This affects any application using vulnerable versions of the node-forge library for cryptographic operations, certificate validation, or ASN.1 parsing.
💻 Affected Systems
- node-forge
📦 What is this software?
Forge by Digitalbazaar
⚠️ Risk & Real-World Impact
Worst Case
Complete bypass of cryptographic verification mechanisms leading to authentication bypass, privilege escalation, or acceptance of forged certificates/signatures.
Likely Case
Partial bypass of security controls allowing unauthorized access or data manipulation where node-forge is used for validation.
If Mitigated
Limited impact with proper input validation and defense-in-depth controls in place.
🎯 Exploit Status
Exploitation requires crafting specific ASN.1 structures to trigger the interpretation conflict.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.2
Vendor Advisory: https://github.com/digitalbazaar/forge/security/advisories/GHSA-5gfm-wpxj-wjgq
Restart Required: Yes
Instructions:
1. Update package.json to require node-forge version 1.3.2 or later
2. Run 'npm update node-forge' or 'yarn upgrade node-forge'
3. Restart all affected applications and services
🔧 Temporary Workarounds
Input validation wrapper
allImplement strict input validation for ASN.1 structures before passing to node-forge
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable systems
- Deploy WAF rules to detect and block malicious ASN.1 structures
🔍 How to Verify
Check if Vulnerable:
Check package.json or run 'npm list node-forge' to see installed versionCheck Version:
npm list node-forge | grep node-forgeVerify Fix Applied:
Verify node-forge version is 1.3.2 or later using 'npm list node-forge'📡 Detection & Monitoring
Log Indicators:
- Unexpected ASN.1 parsing errors
- Failed cryptographic validations
- Unusual certificate validation patterns
Network Indicators:
- Malformed ASN.1 structures in network traffic
- Unexpected cryptographic handshake failures
SIEM Query:
Search for 'node-forge' error messages or ASN.1 parsing anomalies in application logs