Vulnerability Snapshot
CVE-2026-111497 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.
Executive Summary
On October 21, 2026, Node.js announced the availability of fixes for multiple vulnerabilities across the following supported release lines: 22.x, 24.x, and 26.x. These vulnerabilities impact critical operations such as the Brotli decoder, DNS resolution, and TLS certificate validation. The vulnerabilities pose risks for remote code execution and traffic interception. For more information, see Node.js Security Release. The following vulnerabilities have a Security Impact Rating (SIR)
Source
How Vulnios Detects This
Vulnios scans for this vulnerability using Trivy and Grype for SBOM-based CVE matching and Vulnios CVE feed continuous monitoring against your asset inventory. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.
AI Security Advisor
Powered by Gemini
Get AI-powered security recommendations tailored to this specific threat — including risk assessment, detection guidance, MITRE ATT&CK mapping, and actionable remediation steps.
Sources
Related Threat Alerts
- Cisco Patches Actively Exploited ASA and FTD VPN Flaw That Can Crash Firewalls
- CISA Adds Actively Exploited GitLab RCE and Cisco Firewall DoS Flaws to KEV
- Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Tunnel Denial of Service Vulnerability
- CISA Adds Two Known Exploited Vulnerabilities to Catalog
- Vulnerabilities in PHP Affecting Cisco Products: October 2026
- Cisco Expressway Series Information Disclosure Vulnerability
Frequently Asked Questions
What is CVE-2026-111497?
CVE-2026-111497 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. On October 21, 2026, Node.js announced the availability of fixes for multiple vulnerabilities across the following supported release lines: 22.x, 24.x, and 26.x. These vulnerabilities impact critical
Am I affected?
Affected technology is listed in the Affected Products section above. If your asset inventory contains any of them, assume in-scope until you can prove otherwise.
How urgent is the response?
Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.
How do I remediate?
Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.
Where can I track exploitation activity?
Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2026-111497. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.
How does Vulnios help with this?
Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.
Protect Your Organization
Monitor CVEs, scan for vulnerabilities, and get real-time threat alerts — all in one platform.
Weekly threat digest
KEV-listed exploits and vendor advisories, every Monday.
One email a week. Unsubscribe any time.
Get instant alerts on Telegram
Join our public channel for real-time critical CVE alerts.
Follow @vulnios