What is CVE-2026-26952?

CVE-2026-26952 is a medium-severity vulnerability in Pi-hole Web, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2026-02-19.

How severe is CVE-2026-26952?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Pi-hole Web

CVE-2026-26952

Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. Versions 6.4 and below are vulnerable to stored HTML injection through the local DNS records configuration page…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.000 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Pi-hole Web — versions < 6.4.1

Weakness classification (CWE)

References

https://github.com/pi-hole/web/security/advisories/GHSA-6xp4-jw73-f4qp (x_refsource_CONFIRM)
https://github.com/pi-hole/web/commit/d328f143718022d82dc94c8751121ca41be3b996 (x_refsource_MISC)
https://github.com/pi-hole/web/releases/tag/v6.4.1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26952?: CVE-2026-26952 is a medium-severity vulnerability in Pi-hole Web, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2026-02-19.
How severe is CVE-2026-26952?: Medium severity. CVSS v3 base score is 5.4 out of 10.