Is CVE-2026-59887 in the CISA KEV catalog?

No. CVE-2026-59887 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2026-59887 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2026-59887?

CVE-2026-59887 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-59887?

No published fix for CVE-2026-59887 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-59887

HIGH

7.5

CVSS v3

NVD

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.

CWE-407

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-407 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-27223	Medium	5.2	78%	-	Fix
CVE-2022-36021	Medium	5.5	60%	-	Fix
CVE-2021-33582	High	7.5	3.1%	-	Fix
CVE-2024-43485	High	7.5	3.1%	-	Fix
CVE-2024-43484	High	7.5	2.9%	-	Fix
CVE-2016-10396	High	7.5	2.9%	-	-

Embed a live status badge for CVE-2026-59887

Markdown

[![CVE-2026-59887](https://tridentstack.com/cve/badge/CVE-2026-59887.svg)](https://tridentstack.com/cve/CVE-2026-59887)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-59887"><img src="https://tridentstack.com/cve/badge/CVE-2026-59887.svg" alt="CVE-2026-59887"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-10.