Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available
Distribution package intelligence
Ubuntu vendor package status
Canonical’s release and source-package findings are shown separately from local repository availability.
1 package state
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
Ubuntu release
Source package
Vendor state
Fixed version
Evidence
Ubuntu 24.04 LTSnoble · standard archive
apache2
Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
1 current
CVE-2026-29170 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityhttpd: Apache HTTP Server: Cross-site scripting in mod_proxy_ftp via HTML directory list generation
53 known affected
The vendor explicitly identifies these products as affected by this CVE.
httpd as a component of Red Hat Enterprise Linux 10
httpd-core as a component of Red Hat Enterprise Linux 10
httpd-devel as a component of Red Hat Enterprise Linux 10
httpd-filesystem as a component of Red Hat Enterprise Linux 10
httpd-manual as a component of Red Hat Enterprise Linux 10
httpd-tools as a component of Red Hat Enterprise Linux 10
httpd.src as a component of Red Hat Enterprise Linux 10
mod_ldap as a component of Red Hat Enterprise Linux 10
mod_lua as a component of Red Hat Enterprise Linux 10
mod_proxy_html as a component of Red Hat Enterprise Linux 10
mod_session as a component of Red Hat Enterprise Linux 10
mod_ssl as a component of Red Hat Enterprise Linux 10
Summary
A flaw was found in Apache HTTP Server, specifically within the `mod_proxy_ftp` module. This cross-site scripting (XSS) vulnerability occurs during the generation of HTML directory lists when the server is configured to list FTP directory contents via either a forward or reverse proxy. An attacker could exploit this by injecting malicious scripts into web pages, which could lead to information disclosure or unauthorized actions when viewed by other users.
Remediation
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Optional official sources
National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.
Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.
Official European source
ENISA European Vulnerability Database
Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.
1 current
ENISA EUVD identifier
EUVD-2026-35087
No EUVD known-exploited evidence
ENISA has published the identifier mapping but no EUVD description has been stored yet.
EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available
01
What, why and how
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.
What
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.
Why
Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
What
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.
Why
Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.
How
An attacker operating through a network path may attempt exploitation without authentication after a user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No confirmed evidence
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material ?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.None recorded
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
Likely attack path
a network path → Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness ?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVSS vector ?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-79
A
Official authority intelligence
Only matched European and national findings are included. Language selectors and unavailable sources are omitted.
ENISA EUVD · EUVD-2026-35087Official EUVD mapping
0 linked advisory records.
Official EUVD record ↗BSI · German · WID-SEC-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere Schwachstellen
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
Official advisory ↗BSI · German · WID-SEC-2026-1824Apache HTTP Server: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Apache HTTP Server ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu verändern und offenzulegen, einen Denial-of-Service-Zustand zu verursachen oder andere nicht näher definierte Angriffe durchzuführen.
Official advisory ↗Cyber Security Agency of Singapore · English · CSA-SB-20260610Security Bulletin 10 Jun 2026
The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 10 Jun 2026, published on 10 June 2026. Open the linked bulletin for the product, severity and reference information published in that issue.
Official advisory ↗CERT-FR · French · CERTFR-2026-AVI-0710Multiples vulnérabilités dans Apache HTTP Server
De multiples vulnérabilités ont été découvertes dans Apache HTTP Server. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, un déni de service à distance et une injection de code indirecte à distance (XSS).
Official advisory ↗JVN iPedia · Japanese · JVNDB-2026-019012Apache Software FoundationのApache HTTP Serverにおけるクロスサイトスクリプティングの脆弱性
Apache HTTP Server 2.4.67およびそれ以前のバージョンのmod_proxy_ftpには、HTMLディレクトリリスト生成時にクロスサイトスクリプティングの脆弱性が存在します。この脆弱性は、FTPディレクトリの内容をフォワードまたはリバースプロキシ構成を介して一覧表示するときに発生します。ユーザーは、この問題を修正したバージョン2.4.68にアップグレードすることを推奨します。
Operational remediation based on structured source evidence.
Status ?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 8 Jun 2026 · Last source change 8 Jun 2026, 22:32 UTC · CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE recordCVE.org · 5.2
CVSS sourceCISA ADP
EPSS source ?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-35087
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Affected versionsThe structured affected or fixed version information changed.
Before
httpd as a component of Red Hat Enterprise Linux 10; httpd-core as a component of Red Hat Enterprise Linux 10; httpd-devel as a component of Red Hat Enterprise Linux 10; httpd-filesystem as a component of Red Hat Enterprise Linux 10; httpd-manual as a component of Red Hat Enterprise Linux 10; httpd-tools as a component of Red Hat Enterprise Linux 10; httpd.src as a component of Red Hat Enterprise Linux 10; mod_ldap as a component of Red Hat Enterprise Linux 10; mod_lua as a component of Red Hat Enterprise Linux 10; mod_proxy_html as a component of Red Hat Enterprise Linux 10; mod_session as a component of Red Hat Enterprise Linux 10; mod_ssl as a component of Red Hat Enterprise Linux 10; httpd as a component of Red Hat Enterprise Linux 6; httpd-devel as a component of Red Hat Enterprise Linux 6; httpd-manual as a component of Red Hat Enterprise Linux 6; httpd-tools as a component of Red Hat Enterprise Linux 6; httpd.src as a component of Red Hat Enterprise Linux 6; mod_ssl as a component of Red Hat Enterprise Linux 6; httpd as a component of Red Hat Enterprise Linux 7; httpd-devel as a component of Red Hat Enterprise Linux 7; httpd-manual as a component of Red Hat Enterprise Linux 7; httpd-tools as a component of Red Hat Enterprise Linux 7; httpd.src as a component of Red Hat Enterprise Linux 7; mod_ldap as a component of Red Hat Enterprise Linux 7; mod_proxy_html as a component of Red Hat Enterprise Linux 7; mod_session as a component of Red Hat Enterprise Linux 7; mod_ssl as a component of Red Hat Enterprise Linux 7; httpd-devel (httpd:2.4) as a component of Red Hat Enterprise Linux 8; httpd-filesystem (httpd:2.4) as a component of Red Hat Enterprise Linux 8; httpd-manual (httpd:2.4) as a component of Red Hat Enterprise Linux 8; and 37 more · Fixed: httpd-main@aarch64 as a component of Red Hat Hardened Images; httpd-main@noarch as a component of Red Hat Hardened Images; httpd-main@src as a component of Red Hat Hardened Images; httpd-main@x86_64 as a component of Red Hat Hardened Images
After
httpd as a component of Red Hat Enterprise Linux 10; httpd-core as a component of Red Hat Enterprise Linux 10; httpd-devel as a component of Red Hat Enterprise Linux 10; httpd-filesystem as a component of Red Hat Enterprise Linux 10; httpd-manual as a component of Red Hat Enterprise Linux 10; httpd-tools as a component of Red Hat Enterprise Linux 10; httpd.src as a component of Red Hat Enterprise Linux 10; mod_ldap as a component of Red Hat Enterprise Linux 10; mod_lua as a component of Red Hat Enterprise Linux 10; mod_proxy_html as a component of Red Hat Enterprise Linux 10; mod_session as a component of Red Hat Enterprise Linux 10; mod_ssl as a component of Red Hat Enterprise Linux 10; httpd as a component of Red Hat Enterprise Linux 6; httpd-devel as a component of Red Hat Enterprise Linux 6; httpd-manual as a component of Red Hat Enterprise Linux 6; httpd-tools as a component of Red Hat Enterprise Linux 6; httpd.src as a component of Red Hat Enterprise Linux 6; mod_ssl as a component of Red Hat Enterprise Linux 6; httpd as a component of Red Hat Enterprise Linux 7; httpd-devel as a component of Red Hat Enterprise Linux 7; httpd-manual as a component of Red Hat Enterprise Linux 7; httpd-tools as a component of Red Hat Enterprise Linux 7; httpd.src as a component of Red Hat Enterprise Linux 7; mod_ldap as a component of Red Hat Enterprise Linux 7; mod_proxy_html as a component of Red Hat Enterprise Linux 7; mod_session as a component of Red Hat Enterprise Linux 7; mod_ssl as a component of Red Hat Enterprise Linux 7; httpd-devel (httpd:2.4) as a component of Red Hat Enterprise Linux 8; httpd-filesystem (httpd:2.4) as a component of Red Hat Enterprise Linux 8; httpd-manual (httpd:2.4) as a component of Red Hat Enterprise Linux 8; and 23 more · Fixed: jbcs-httpd24-httpd-0:2.4.62-16.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-debuginfo-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-devel-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-manual-0:2.4.62-16.el8jbcs.noarch as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-selinux-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-tools-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-httpd-tools-debuginfo-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_http2-0:2.0.29-13.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_http2-0:2.0.29-13.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_http2-debuginfo-0:2.0.29-13.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_jk-0:1.2.50-17.redhat_1.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_jk-ap24-0:1.2.50-17.redhat_1.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_jk-ap24-debuginfo-0:1.2.50-17.redhat_1.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_ldap-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_ldap-debuginfo-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_md-1:2.4.28-19.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_md-1:2.4.28-19.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_md-debuginfo-1:2.4.28-19.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_proxy_cluster-0:1.3.22-12.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_proxy_cluster-0:1.3.22-12.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_proxy_cluster-debuginfo-0:1.3.22-12.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_proxy_html-1:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_proxy_html-debuginfo-1:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_security-0:2.9.6-19.el8jbcs.src as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_security-0:2.9.6-19.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_security-debuginfo-0:2.9.6-19.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_session-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_session-debuginfo-0:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; jbcs-httpd24-mod_ssl-1:2.4.62-16.el8jbcs.x86_64 as a component of Red Hat JBoss Core Services on RHEL 8; and 6 more
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
