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Node.js November 2026 Security Releases: Detection & IOCs

Node.js fixes 16 flaws, including the HTTPS heap leak CVE-2026-123864. Patch status, 7 IOCs and 9 detection rules, including a free Splunk SPL rule.

Read the full threat intel for Node.js November 2026 Security Releases: Detection & IOCs →

Chapters

  1. 0:00The hookNode.js fixed 16 vulnerabilities.
  2. 0:04The storyFixes shipped November 11.
  3. 0:11Attack pathExposed servers can crash, according to GBHackers.
  4. 0:28AttributionNo threat actor is attributed.
  5. 0:32Indicators of compromise7 indicators to hunt: 1 IP, 5 package names and 1 path.
  6. 0:38MITRE ATT&CK techniques5 ATT&CK techniques, from initial access to impact.
  7. 0:43Remediation4 steps now: Upgrade to Node.js.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Node.js fixed 16 vulnerabilities.

0:05Fixes shipped November 11.

0:07HTTPS flaw may leak TLS private keys.

0:11Exposed servers can crash, according to GBHackers.

0:15Some traffic exhausts memory and file descriptors.

0:19Only some HTTPS handlers hit a re-entrancy bug.

0:23Upgrade to patched releases and restart.

0:28No threat actor is attributed. Confidence: low.

0:337 indicators to hunt: 1 IP, 5 package names and 1 path.

0:395 ATT&CK techniques, from initial access to impact.

0:444 steps now: Upgrade to Node.js.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.