CVE-2026-107807 0xJacky CVE debrief

Who should care

Administrators and security teams using Nginx UI for web server management should verify and remediate vulnerable instances to prevent potential credential exposure and unauthorized access. They should review access logs, proxy logs, and browser history for potential credential exposure and update configurations to require X-Node-Secret header for authentication.

Why it matters

CVE-2026-107807 exposes Node.Secret credential in Nginx UI. Defenders should verify and remediate vulnerable instances to prevent potential credential exposure and unauthorized access.

• Potential credential exposure in access logs and browser history
• Bypass of normal password, JWT, session, and second-factor checks
• Persistent administrative API access for attackers obtaining the secret
• Verification of Nginx UI version and configuration required

Technical summary

Nginx UI 2.0.0 to 2.5.0 exposes Node.Secret master credential through node_secret query parameter in HTTP and WebSocket authentication paths. This allows for potential credential exposure in logs and browser history, and bypass of normal password, JWT, session, and second-factor checks. An attacker obtaining the secret can gain persistent administrative API access, including access to configuration and secret material. The issue is fixed in version 2.5.0. Defenders should verify and remediate vulnerable instances to prevent potential credential exposure and unauthorized access.

Defensive priority

High-priority verification and remediation recommended for Nginx UI instances

Recommended defensive actions

• Verify Nginx UI version and upgrade to 2.5.0 or later if vulnerable
• Review access logs, proxy logs, and browser history for potential credential exposure
• Update configurations to require X-Node-Secret header for authentication
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Official CVE Program record and NVD vulnerability detail page confirm the issue. Vendor advisory and fix information available. The CVE record was published on 2026-10-09T15:04:18.109Z and has not been modified since then. No additional information is available from the vendor about the vulnerability. The vulnerability affects Nginx UI versions from 2.0.0 to 2.5.0. Defenders should verify and remediate vulnerable instances to prevent potential credential exposure and unauthorized access.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.