CVE-2026-30823
📋 TL;DR
CVE-2026-30823 is an Insecure Direct Object Reference (IDOR) vulnerability in Flowise that allows attackers to bypass authorization controls. This enables account takeover and unauthorized access to enterprise SSO configuration features. All Flowise instances running versions before 3.0.13 are affected.
💻 Affected Systems
- FlowiseAI Flowise
⚠️ 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
Complete compromise of all user accounts, unauthorized access to enterprise SSO configurations leading to broader organizational compromise, and potential data exfiltration from connected systems.
Likely Case
Targeted account takeover of specific users, unauthorized modification of SSO settings, and bypass of enterprise feature restrictions.
If Mitigated
Limited impact with proper network segmentation, strong authentication controls, and monitoring in place, though vulnerability still exists.
🎯 Exploit Status
Exploitation requires authenticated access but minimal technical skill. Attackers can manipulate object references to access unauthorized resources.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.13
Vendor Advisory: https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-cwc3-p92j-g7qm
Restart Required: Yes
Instructions:
1. Backup your Flowise configuration and data. 2. Update Flowise to version 3.0.13 or later using your package manager. 3. Restart the Flowise service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict access to Flowise administration interfaces to trusted IP addresses only
Use firewall rules to limit access to Flowise ports (e.g., 3000) to authorized networks
Authentication Enhancement
allImplement additional authentication layers or rate limiting
Configure reverse proxy with additional authentication (e.g., basic auth, OAuth proxy)
🧯 If You Can't Patch
- Isolate Flowise instance in a restricted network segment with no internet access
- Implement strict monitoring and alerting for unauthorized access attempts to SSO configuration endpoints
🔍 How to Verify
Check if Vulnerable:
Check Flowise version. If version is below 3.0.13, the system is vulnerable.Check Version:
Check package.json version or Flowise admin interface for version informationVerify Fix Applied:
Confirm Flowise version is 3.0.13 or higher and test SSO configuration access controls.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to SSO configuration endpoints
- Unusual user privilege escalation events
- Multiple failed authorization attempts followed by successful access
Network Indicators:
- Unusual patterns of requests to SSO configuration API endpoints
- Requests manipulating object IDs in URLs or parameters
SIEM Query:
source="flowise" AND (uri_path="/api/v1/sso*" OR uri_path="/api/v1/user*") AND status=200 AND user NOT IN authorized_users