CVE-2026-22592
📋 TL;DR
This vulnerability in Gogs allows authenticated users to cause a denial-of-service (DoS) attack by deleting repository files before synchronization, which crashes the application. It affects self-hosted Gogs instances running version 0.13.3 or earlier. Only authenticated users can exploit this vulnerability.
💻 Affected Systems
- Gogs
📦 What is this software?
Gogs by Gogs
⚠️ Risk & Real-World Impact
Worst Case
Malicious authenticated user crashes the Gogs service, causing complete unavailability for all users until manual restart.
Likely Case
Accidental or intentional deletion of repository files during synchronization causes service crashes and intermittent downtime.
If Mitigated
With proper access controls and monitoring, impact is limited to temporary service disruption that can be quickly detected and restored.
🎯 Exploit Status
Exploitation requires authenticated access to Gogs and knowledge of repository file deletion timing relative to synchronization processes.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.13.4 or 0.14.0+dev
Vendor Advisory: https://github.com/gogs/gogs/security/advisories/GHSA-cr88-6mqm-4g57
Restart Required: Yes
Instructions:
1. Backup your Gogs data and configuration. 2. Stop the Gogs service. 3. Upgrade to version 0.13.4 or later. 4. Restart the Gogs service. 5. Verify the service is running correctly.
🔧 Temporary Workarounds
Restrict repository file deletion permissions
allLimit which authenticated users can delete repository files to reduce attack surface.
Configure Gogs repository permissions to restrict delete operations to trusted administrators only
🧯 If You Can't Patch
- Implement strict access controls to limit which users can delete repository files
- Monitor for service crashes and implement automated restart mechanisms
🔍 How to Verify
Check if Vulnerable:
Check Gogs version via web interface admin panel or by examining the binary/installation directoryCheck Version:
gogs --version or check web interface at /adminVerify Fix Applied:
Confirm version is 0.13.4 or later and test repository file deletion during synchronization📡 Detection & Monitoring
Log Indicators:
- Unexpected Gogs service crashes
- Error logs related to file synchronization failures
- Panic or segmentation fault messages in system logs
Network Indicators:
- Sudden loss of connectivity to Gogs service
- HTTP 5xx errors from Gogs endpoints
SIEM Query:
source="gogs.log" AND ("panic" OR "crash" OR "segmentation fault") OR source="system.log" AND process="gogs" AND ("terminated" OR "killed")