CVE-2026-3209
📋 TL;DR
This vulnerability allows attackers to bypass access controls in fosrl Pangolin's Role Handler component, potentially gaining unauthorized access to restricted functions. It affects all systems running Pangolin versions up to 1.15.4-s.3. Remote exploitation is possible without authentication.
💻 Affected Systems
- fosrl Pangolin
⚠️ 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
Attackers gain administrative privileges, access sensitive data, modify system configurations, or execute unauthorized operations.
Likely Case
Unauthorized access to restricted API endpoints or administrative functions leading to data exposure or privilege escalation.
If Mitigated
Minimal impact with proper network segmentation, strong authentication, and monitoring in place.
🎯 Exploit Status
Exploit details are publicly available in the GitHub gist reference, making exploitation straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.15.4-s.4
Vendor Advisory: https://github.com/fosrl/pangolin/releases/tag/1.15.4-s.4
Restart Required: Yes
Instructions:
1. Backup current configuration and data. 2. Stop Pangolin service. 3. Upgrade to version 1.15.4-s.4 using package manager or manual installation. 4. Restart Pangolin service. 5. Verify successful upgrade.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Pangolin instances to trusted IPs only
iptables -A INPUT -p tcp --dport <pangolin_port> -s <trusted_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport <pangolin_port> -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to Pangolin instances
- Enable detailed logging and monitoring for unauthorized access attempts to Role Handler functions
🔍 How to Verify
Check if Vulnerable:
Check Pangolin version: if version is 1.15.4-s.3 or earlier, system is vulnerableCheck Version:
pangolin --version or check package managerVerify Fix Applied:
Verify version is 1.15.4-s.4 or later and test access control functionality📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to verifyRoleAccess/verifyApiKeyRoleAccess functions
- Unusual privilege escalation patterns
Network Indicators:
- Unexpected API calls to Role Handler endpoints from untrusted sources
SIEM Query:
source="pangolin" AND (event="access_denied" OR event="unauthorized_access")🔗 References
- https://gist.github.com/henrrrychau/0457bef6776d0c99688f9cf55cdf55f7
- https://github.com/fosrl/pangolin/
- https://github.com/fosrl/pangolin/commit/5e37c4e85fae68e756be5019a28ca903b161fdd5
- https://github.com/fosrl/pangolin/pull/2511
- https://github.com/fosrl/pangolin/releases/tag/1.15.4-s.4
- https://vuldb.com/?ctiid.347796
- https://vuldb.com/?id.347796
- https://vuldb.com/?submit.765676
