CVE-2021-36716

A ReDoS (regular expression denial of service) flaw was found in the Segment is-email package before 1.0.1 for Node.js. An attacker that is able to provide crafted input to the isEmail(input) function may cause an application to consume an excessive amount of CPU.

• CWE-400

• https://github.com/segmentio/is-email/releasesRelease Notes, Third Party Advisory
• https://segment.com/docs/release_notes/2021-07-13-cve-2021-36716/Vendor Advisory
• https://github.com/segmentio/is-email/releasesRelease Notes, Third Party Advisory
• https://segment.com/docs/release_notes/2021-07-13-cve-2021-36716/Vendor Advisory

Published

Jul 14, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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