CVE-2026-22786
📋 TL;DR
Gin-vue-admin versions up to 2.8.7 contain a path traversal vulnerability in the breakpoint resume upload functionality. Attackers with file upload privileges can write arbitrary files to any directory on the server by exploiting insufficient input validation. This affects all deployments using vulnerable versions of the gin-vue-admin backstage management system.
💻 Affected Systems
- gin-vue-admin
📦 What is this software?
Gin Vue Admin by Gin Vue Admin Project
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through arbitrary file write leading to remote code execution, data exfiltration, or system takeover.
Likely Case
Unauthorized file upload to sensitive directories, potentially overwriting configuration files or deploying malicious scripts.
If Mitigated
Limited impact if proper file upload restrictions and input validation are already implemented.
🎯 Exploit Status
Exploitation requires authenticated access with file upload permissions. The vulnerability is straightforward to exploit once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.8.8 and later
Vendor Advisory: https://github.com/flipped-aurora/gin-vue-admin/security/advisories/GHSA-3558-j79f-vvm6
Restart Required: Yes
Instructions:
1. Update gin-vue-admin to version 2.8.8 or later. 2. Restart the application server. 3. Verify the fix by checking the commit 2242f5d6e133e96d1b359ac019bf54fa0e975dd5 is applied.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject file names containing directory traversal sequences.
Implement input sanitization in breakpoint_continue.go to filter out '../' sequences
File Upload Restriction
allRestrict file upload functionality to authenticated users only and implement strict file type validation.
Add authentication middleware to /fileUploadAndDownload/breakpointContinueFinish endpoint
🧯 If You Can't Patch
- Disable the breakpoint resume upload functionality entirely if not required.
- Implement network-level controls to restrict access to the vulnerable endpoint.
🔍 How to Verify
Check if Vulnerable:
Check if running gin-vue-admin version <= 2.8.7 and examine breakpoint_continue.go for lack of path traversal validation.Check Version:
Check package.json or application configuration for gin-vue-admin versionVerify Fix Applied:
Verify the application version is >= 2.8.8 and check that breakpoint_continue.go includes proper path sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual file upload requests with '../' sequences in file names
- File write operations to unexpected directories
Network Indicators:
- HTTP POST requests to /fileUploadAndDownload/breakpointContinueFinish with suspicious file paths
SIEM Query:
source="web_logs" AND uri="/fileUploadAndDownload/breakpointContinueFinish" AND (file_name LIKE "%../%" OR file_name LIKE "%..\")