What is CVE-2026-42338?

CVE-2026-42338 is a medium-severity vulnerability in Beaugunderson Ip-address, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-12.

How severe is CVE-2026-42338?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Beaugunderson Ip-address

CVE-2026-42338

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they r…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Beaugunderson Ip-address — versions < 10.1.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42338?: CVE-2026-42338 is a medium-severity vulnerability in Beaugunderson Ip-address, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-05-12.
How severe is CVE-2026-42338?: Medium severity. CVSS v3 base score is 6.1 out of 10.