node.js security

Picomatch’s ReDoS flaw is a reminder that small parsing bugs can become big availability problems A new CVE-2026-33671 advisory is drawing attention to a familiar but still dangerous class of bug: regular expression denial of service, or ReDoS, in the JavaScript glob matcher Picomatch. The issue...

When Microsoft quietly flags a CVE through its Security Update Guide, the shorthand can hide a lot of practical risk. In the case of CVE-2026-21637, the key issue is not a flashy remote code execution claim but something more mundane and, in many production environments, just as disruptive: a...

Microsoft’s CVE-2026-21715 advisory points to a Node.js Permission Model bypass that matters most for applications relying on --permission and restricted --allow-fs-read settings. In practical terms, the flaw lets fs.realpathSync.native() sidestep the read-permission checks that comparable...