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EPSS 0.5%top 59%

Apache2: 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…

0
Medium
Published: 06/08/2026 (06/08/2026, 16:16:00 UTC)
Source: GCVE Database
Product: apache2

Description

A cross-site scripting (XSS) vulnerability exists in the mod_proxy_ftp module of Apache HTTP Server versions 2.4.67 and earlier. This vulnerability occurs during the generation of HTML directory listings when listing FTP directory contents via forward or reverse proxy configurations. The issue is fixed in Apache HTTP Server version 2.4.68. Users running affected versions are advised to upgrade to this fixed version to mitigate the vulnerability.

CVSS v3.1

Score 6.1medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected software

Ubuntu:Pro:14.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm15?arch=source&distro=esm-infra-legacy/trusty
Affected versions
=2.4.6-2ubuntu2=2.4.6-2ubuntu3=2.4.6-2ubuntu4=2.4.7-1ubuntu1=2.4.7-1ubuntu2=2.4.7-1ubuntu3=2.4.7-1ubuntu4=2.4.7-1ubuntu4.1=2.4.7-1ubuntu4.4=2.4.7-1ubuntu4.5=2.4.7-1ubuntu4.6=2.4.7-1ubuntu4.7=2.4.7-1ubuntu4.8=2.4.7-1ubuntu4.9=2.4.7-1ubuntu4.10=2.4.7-1ubuntu4.11=2.4.7-1ubuntu4.13=2.4.7-1ubuntu4.15=2.4.7-1ubuntu4.16=2.4.7-1ubuntu4.17=2.4.7-1ubuntu4.18=2.4.7-1ubuntu4.19=2.4.7-1ubuntu4.20=2.4.7-1ubuntu4.21=2.4.7-1ubuntu4.22=2.4.7-1ubuntu4.22+esm1=2.4.7-1ubuntu4.22+esm2=2.4.7-1ubuntu4.22+esm3=2.4.7-1ubuntu4.22+esm4=2.4.7-1ubuntu4.22+esm5=2.4.7-1ubuntu4.22+esm6=2.4.7-1ubuntu4.22+esm8=2.4.7-1ubuntu4.22+esm9=2.4.7-1ubuntu4.22+esm10=2.4.7-1ubuntu4.22+esm12=2.4.7-1ubuntu4.22+esm13=2.4.7-1ubuntu4.22+esm14=2.4.7-1ubuntu4.22+esm15
Ubuntu:Pro:16.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm20?arch=source&distro=esm-infra-legacy/xenial
Affected versions
=2.4.12-2ubuntu2=2.4.17-1ubuntu1=2.4.17-2ubuntu1=2.4.17-3ubuntu1=2.4.18-1ubuntu1=2.4.18-2ubuntu1=2.4.18-2ubuntu2=2.4.18-2ubuntu3=2.4.18-2ubuntu3.1=2.4.18-2ubuntu3.2=2.4.18-2ubuntu3.3=2.4.18-2ubuntu3.4=2.4.18-2ubuntu3.5=2.4.18-2ubuntu3.7=2.4.18-2ubuntu3.8=2.4.18-2ubuntu3.9=2.4.18-2ubuntu3.10=2.4.18-2ubuntu3.12=2.4.18-2ubuntu3.13=2.4.18-2ubuntu3.14=2.4.18-2ubuntu3.15=2.4.18-2ubuntu3.17=2.4.18-2ubuntu3.17+esm1=2.4.18-2ubuntu3.17+esm2=2.4.18-2ubuntu3.17+esm3=2.4.18-2ubuntu3.17+esm4=2.4.18-2ubuntu3.17+esm5=2.4.18-2ubuntu3.17+esm6=2.4.18-2ubuntu3.17+esm7=2.4.18-2ubuntu3.17+esm8=2.4.18-2ubuntu3.17+esm9=2.4.18-2ubuntu3.17+esm10=2.4.18-2ubuntu3.17+esm11=2.4.18-2ubuntu3.17+esm12=2.4.18-2ubuntu3.17+esm13=2.4.18-2ubuntu3.17+esm14=2.4.18-2ubuntu3.17+esm16=2.4.18-2ubuntu3.17+esm17=2.4.18-2ubuntu3.17+esm18=2.4.18-2ubuntu3.17+esm19=2.4.18-2ubuntu3.17+esm20
Ubuntu:Pro:18.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm11?arch=source&distro=esm-infra/bionic
Affected versions
=2.4.27-2ubuntu3=2.4.29-1ubuntu1=2.4.29-1ubuntu2=2.4.29-1ubuntu3=2.4.29-1ubuntu4=2.4.29-1ubuntu4.1=2.4.29-1ubuntu4.2=2.4.29-1ubuntu4.3=2.4.29-1ubuntu4.4=2.4.29-1ubuntu4.5=2.4.29-1ubuntu4.6=2.4.29-1ubuntu4.7=2.4.29-1ubuntu4.8=2.4.29-1ubuntu4.10=2.4.29-1ubuntu4.11=2.4.29-1ubuntu4.12=2.4.29-1ubuntu4.13=2.4.29-1ubuntu4.14=2.4.29-1ubuntu4.16=2.4.29-1ubuntu4.17=2.4.29-1ubuntu4.18=2.4.29-1ubuntu4.19=2.4.29-1ubuntu4.20=2.4.29-1ubuntu4.21=2.4.29-1ubuntu4.22=2.4.29-1ubuntu4.23=2.4.29-1ubuntu4.24=2.4.29-1ubuntu4.25=2.4.29-1ubuntu4.26=2.4.29-1ubuntu4.27=2.4.29-1ubuntu4.27+esm1=2.4.29-1ubuntu4.27+esm2=2.4.29-1ubuntu4.27+esm3=2.4.29-1ubuntu4.27+esm4=2.4.29-1ubuntu4.27+esm6=2.4.29-1ubuntu4.27+esm7=2.4.29-1ubuntu4.27+esm8=2.4.29-1ubuntu4.27+esm9=2.4.29-1ubuntu4.27+esm10=2.4.29-1ubuntu4.27+esm11
Ubuntu:Pro:20.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]+esm6?arch=source&distro=esm-infra/focal
Affected versions
=2.4.41-1ubuntu1=2.4.41-4ubuntu1=2.4.41-4ubuntu2=2.4.41-4ubuntu3=2.4.41-4ubuntu3.1=2.4.41-4ubuntu3.3=2.4.41-4ubuntu3.4=2.4.41-4ubuntu3.5=2.4.41-4ubuntu3.6=2.4.41-4ubuntu3.7=2.4.41-4ubuntu3.8=2.4.41-4ubuntu3.9=2.4.41-4ubuntu3.10=2.4.41-4ubuntu3.11=2.4.41-4ubuntu3.12=2.4.41-4ubuntu3.13=2.4.41-4ubuntu3.14=2.4.41-4ubuntu3.15=2.4.41-4ubuntu3.16=2.4.41-4ubuntu3.17=2.4.41-4ubuntu3.19=2.4.41-4ubuntu3.20=2.4.41-4ubuntu3.21=2.4.41-4ubuntu3.23=2.4.41-4ubuntu3.23+esm2=2.4.41-4ubuntu3.23+esm3=2.4.41-4ubuntu3.23+esm4=2.4.41-4ubuntu3.23+esm5=2.4.41-4ubuntu3.23+esm6
Ubuntu:22.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]?arch=source&distro=jammy
Affected versions
<2.4.52-1ubuntu4.23=2.4.48-3.1ubuntu3=2.4.48-3.1ubuntu4=2.4.51-2ubuntu1=2.4.52-1ubuntu1=2.4.52-1ubuntu2=2.4.52-1ubuntu4=2.4.52-1ubuntu4.1=2.4.52-1ubuntu4.2=2.4.52-1ubuntu4.3=2.4.52-1ubuntu4.4=2.4.52-1ubuntu4.5=2.4.52-1ubuntu4.6=2.4.52-1ubuntu4.7=2.4.52-1ubuntu4.8=2.4.52-1ubuntu4.9=2.4.52-1ubuntu4.10=2.4.52-1ubuntu4.11=2.4.52-1ubuntu4.12=2.4.52-1ubuntu4.13=2.4.52-1ubuntu4.14=2.4.52-1ubuntu4.15=2.4.52-1ubuntu4.16=2.4.52-1ubuntu4.18=2.4.52-1ubuntu4.19=2.4.52-1ubuntu4.20=2.4.52-1ubuntu4.21
Ubuntu:24.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]?arch=source&distro=noble
Affected versions
<2.4.58-1ubuntu8.15=2.4.57-2ubuntu2=2.4.57-2ubuntu3=2.4.58-1ubuntu1=2.4.58-1ubuntu2=2.4.58-1ubuntu6=2.4.58-1ubuntu7=2.4.58-1ubuntu8=2.4.58-1ubuntu8.1=2.4.58-1ubuntu8.2=2.4.58-1ubuntu8.3=2.4.58-1ubuntu8.4=2.4.58-1ubuntu8.5=2.4.58-1ubuntu8.6=2.4.58-1ubuntu8.7=2.4.58-1ubuntu8.8=2.4.58-1ubuntu8.10=2.4.58-1ubuntu8.11=2.4.58-1ubuntu8.12=2.4.58-1ubuntu8.13
Ubuntu:25.10more threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]?arch=source&distro=questing
Affected versions
=2.4.63-1ubuntu1=2.4.63-1ubuntu3=2.4.64-1ubuntu2=2.4.64-1ubuntu3=2.4.64-1ubuntu3.2=2.4.64-1ubuntu3.3=2.4.64-1ubuntu3.4=2.4.64-1ubuntu3.5
Ubuntu:26.04:LTSmore threats →ghsa
apache2
pkg:deb/ubuntu/[email protected]?arch=source&distro=resolute
Affected versions
<2.4.66-2ubuntu2.4=2.4.64-1ubuntu3=2.4.65-3ubuntu1=2.4.66-2ubuntu1=2.4.66-2ubuntu2=2.4.66-2ubuntu2.1=2.4.66-2ubuntu2.2

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/23/2026, 00:23:43 UTC

Technical Analysis

The Apache HTTP Server mod_proxy_ftp module in versions 2.4.67 and earlier improperly sanitizes HTML directory listings generated when listing FTP directory contents through forward or reverse proxy configurations. This flaw allows a cross-site scripting vulnerability, enabling an attacker to inject malicious scripts into the directory listing output. The vulnerability is resolved in version 2.4.68, which includes the necessary fixes to prevent script injection.

Potential Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the user's browser when viewing FTP directory listings served by the vulnerable Apache HTTP Server. This could lead to information disclosure or other client-side impacts related to cross-site scripting. The vulnerability does not affect server availability or integrity directly.

Mitigation Recommendations

An official fix is available in Apache HTTP Server version 2.4.68. Users are strongly recommended to upgrade to this version or later to remediate the vulnerability. No additional mitigation steps are indicated beyond applying the official update.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
UBUNTU-CVE-2026-29170
Osv Schema Version
1.7.0
Aliases
[]
Ecosystems
["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
Database Specific Severity
null
Cvss Version
3.1

Threat ID: 6a61511f9c2644c7f8da5f63

Added to database: 07/22/2026, 23:24:15 UTC

Last enriched: 07/23/2026, 00:23:43 UTC

Last updated: 07/31/2026, 19:24:50 UTC

Views: 22

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