Is CVE-2026-59887 actively exploited?

No active exploitation of CVE-2026-59887 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-59887 be exploited remotely?

Yes. CVE-2026-59887 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-59887?

CVE-2026-59887 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-59887

HIGH

CVE-2026-59887

CWE-407Published: July 8, 2026· Updated: Jul 10, 2026

7.5

CVSS v3.1

EPSS:0.35%probability of exploitation in 30 daysPercentile:26.6th

Official Description

linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causing O(n^2) CPU consumption on crafted user text. This issue is fixed in version 5.0.2.

NVD Source

Technical Analysis

CVE-2026-59887 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.