CVE-2026-3192
📋 TL;DR
This vulnerability allows remote attackers to bypass authentication in Chia Blockchain's RPC interface by manipulating the _authenticate function. It affects systems running Chia Blockchain 2.1.0 with RPC enabled. Attackers could potentially execute unauthorized RPC commands on vulnerable instances.
💻 Affected Systems
- Chia Blockchain
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Chia node allowing unauthorized RPC commands, potentially including wallet operations, blockchain manipulation, or system command execution.
Likely Case
Unauthorized access to RPC functions, potentially allowing attackers to query sensitive information or perform limited administrative actions.
If Mitigated
Minimal impact if RPC interface is properly firewalled or authentication is enforced through additional layers.
🎯 Exploit Status
Exploit code is publicly available on GitHub. The vendor considers this 'by design' and has not provided a fix.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: none
Vendor Advisory: none
Restart Required: No
Instructions:
No official patch available. Vendor rejected the vulnerability report stating 'This is by design. The user is responsible for host security'.
🔧 Temporary Workarounds
Disable RPC Interface
allCompletely disable the RPC interface if not required
Edit chia configuration to disable RPC server
Network Restriction
allRestrict RPC access to trusted IP addresses only
Configure firewall rules to allow only specific IPs to port 8555
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to restrict RPC access
- Monitor RPC logs for unauthorized access attempts and implement intrusion detection
🔍 How to Verify
Check if Vulnerable:
Check if running Chia Blockchain 2.1.0 with RPC enabled. Test authentication bypass using the public PoC.Check Version:
chia versionVerify Fix Applied:
Verify RPC interface is disabled or properly firewalled. Test authentication requirements for RPC endpoints.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful RPC calls
- RPC requests from unexpected IP addresses
Network Indicators:
- Unauthenticated RPC requests to port 8555
- RPC traffic patterns inconsistent with normal usage
SIEM Query:
source="chia.log" AND "RPC" AND "authenticate" AND ("failed" OR "bypass")