What is CVE-2026-29170?

CVE-2026-29170 is a medium-severity vulnerability in Apache HTTP Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-08.

How severe is CVE-2026-29170?

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

XSS in Apache HTTP Server

CVE-2026-29170

A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation in Apache HTTP Server 2.4.67 and earlier when listing FTP directory contents either via forward or reverse proxy configuration. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-06-08 · last modified 2026-07-23.

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.

EPSS exploit prediction

EPSS: 0.010 (63.7th percentile), scored 2026-10-25.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Apache HTTP Server
Apache Software Foundation HTTP Server — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

httpd.apache.org/security/vulnerabilities_24.html (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-29170?: CVE-2026-29170 is a medium-severity vulnerability in Apache HTTP Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-06-08.
How severe is CVE-2026-29170?: Medium severity. CVSS v3 base score is 6.1 out of 10.