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TI-2021-14854 Aliases CVE-2021-36716GHSA-j377-2x76-558h

A ReDoS (regular expression denial of service) flaw was found in the Segment is-email…

Priority LOW 35CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

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.

Why it matters now

EPSS 0.0099 62nd percentileScored 2026-11-07
Fix Fixed is-email (npm): 1.0.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—is-email (npm)before 1.0.11.0.1Patch availableGHSA-j377-2x76-558h
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • is-email (npm) Vendor— Affected before 1.0.1 Fixed in 1.0.1 Patch available GHSA-j377-2x76-558h

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:segment:is-email:*:*:*:*:*:node.js:*:*before 1.0.1VulnerableSegment
  • cpe:2.3:a:segment:is-email:*:*:*:*:*:node.js:*:* Versions before 1.0.1 Vulnerable ·Segment

Remediation

  • Fix · GHSA-j377-2x76-558h is-email (npm) Fixed in 1.0.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-36716
  2. 2026-10-03 Alias added: GHSA-j377-2x76-558h

References

Advisory 3

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences