According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    Improper Null Termination, Out-of-bounds Read vulnerability in Apache HTTP Server.

    This issue affects Apache HTTP Server: through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-34032)

    A flaw was found in the `mod_dav_fs` module of Apache HTTP Server. A WebDAV (Web Distributed Authoring and     Versioning) content author could exploit a path handling issue to directly manipulate trusted DAV property     databases. This manipulation could potentially lead to child process crashes, resulting in a Denial of     Service (DoS).(CVE-2026-42535)

    Out-of-bounds Read vulnerability in mod_proxy_ajp of

    Apache HTTP Server.

    This issue affects Apache HTTP Server: through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-33857)

    Buffer Over-read vulnerability in Apache HTTP Server.

    This issue affects Apache HTTP Server: through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-34059)

    Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and     untrusted content

    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-42536)

    Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled     OCSP server

    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44185)

    Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.

    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44631)

    Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server.
    If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back     to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer.

    This issue affects Apache HTTP Server: through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-28780)

    HTTP response splitting vulnerability in multiple Apache HTTP Server modules with untrusted or compromised     backend servers.

    This issue affects Apache HTTP Server: from through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-33523)

    A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker     to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.

    The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version     1.2.0.

    Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove     mod_dav_lock.(CVE-2026-29169)

    Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local     .htaccess authors to read files with the privileges of the httpd user.

    This issue affects Apache HTTP Server: from through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44119)

    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.(CVE-2026-29170)

    Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and     ProxyPassReverseCookie*

    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-34356)

    A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest     authentication by a remote attacker.

    Users are recommended to upgrade to version 2.4.67, which fixes this issue.(CVE-2026-33006)

    Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response     languages.

    This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.(CVE-2026-43951)

    Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache     HTTP Server with an attacker controlled backend FTP server.

    This issue affects undefined: from 2.4.0 through 2.4.67.

    Users are recommended to upgrade to version 2.4.68, which fixes the issue.(CVE-2026-44186)

    An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess     authors to read files with the privileges of the httpd user.

    Users are recommended to upgrade to version 2.4.67, which fixes this issue.(CVE-2026-24072)

    Allocation of Resources Without Limits or Throttling vulnerability in Apache HTTP Server's   mod_md via     OCSP response data.

    This issue affects Apache HTTP Server: from 2.4.30 through 2.4.66.

    Users are recommended to upgrade to version 2.4.67, which fixes the issue.(CVE-2026-29168)

    A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an     unauthenticated remote user to crash a child process in a caching forward proxy configuration.

    Users are recommended to upgrade to version 2.4.67, which fixes this issue.(CVE-2026-33007)

Tenable has extracted the preceding description block directly from the EulerOS httpd security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 1ccc383b-486a-11f1-8b62-8447094a420f advisory.

    The Apache httpd project reports:
    mod_proxy_ajp: CVE-2026-34059, CVE-2026-34032, CVE-2026-33857, CVE-2026-28780     multiple modules: CVE-2026-33523     mod_authn_socache: CVE-2026-33007     mod_auth_digest: CVE-2026-33006     mod_dav_lock: mod_dav_lock     mod_md: CVE-2026-29168     mod_rewrite: CVE-2026-24072     mod_http2: CVE-2026-23918

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6248 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6248-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     May 06, 2026                          https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : apache2     CVE ID         : CVE-2026-23918 CVE-2026-24072 CVE-2026-28780 CVE-2026-29168                      CVE-2026-29169 CVE-2026-33006 CVE-2026-33007 CVE-2026-33523                      CVE-2026-33857 CVE-2026-34032 CVE-2026-34059     Debian Bug     : 1135737

    Multiple vulnerabilities have been discovered in the Apache HTTP server,     which may result in remote code execution, privilege escalation, denial     of service or information disclosure.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 2.4.67-1~deb12u2.

    For the stable distribution (trixie), these problems have been fixed in     version 2.4.67-1~deb13u2. The fix for CVE-2026-23918 was already     included in the Debian 13.4 point release update versioned     2.4.66-1~deb13u2 to address reported HTTP/2 regressions.

    We recommend that you upgrade your apache2 packages.

    For the detailed security status of apache2 please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/apache2

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker     to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.
    The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version     1.2.0. Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.
    (CVE-2026-29169)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41906 advisory.

    The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

    Security Fix(es):

    * httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)

    * Apache HTTP Server: mod_rewrite: Apache HTTP Server: Privilege Escalation via .htaccess file     manipulation (CVE-2026-24072)

    * httpd: mod_auth_digest: timing attack allows a bypass of digest authentication (CVE-2026-33006)

    * httpd: NULL pointer dereference via specially crafted request (CVE-2026-29169)

    * httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)

    * httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server     (CVE-2026-44185)

    * httpd: Apache HTTP Server: Denial of Service via crafted regular expressions (CVE-2026-44631)

    * httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server     (CVE-2026-44186)

    * httpd: Apache httpd mod_dav_fs: Denial of Service due to path handling issue (CVE-2026-42535)

    * httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc     (CVE-2026-42536)

    * httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass (CVE-2026-34355)

    * httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime (CVE-2026-43951)

    * httpd: Apache HTTP Server: Local .htaccess authors can read files with httpd user privileges     (CVE-2026-44119)

    Bug Fix(es) and Enhancement(s):

    * address Moderate severity issues from httpd 2.4.68 [rhel-9.8.z] (JIRA:RHEL-184520)

    * mod_proxy_html regression in CVE-2026-34355 fix [rhel-9.8.z] (JIRA:RHEL-192752)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:47046 advisory.

    The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

    Security Fix(es):

    * httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)

    * httpd: mod_proxy_ajp: heap-based buffer over-read and memory disclosure in ajp_parse_data()     (CVE-2026-34059)

    * httpd: mod_proxy_ajp: heap-based buffer over-read due to missing null-termination check (CVE-2026-34032)

    * httpd: mod_proxy_ajp: off-by-one out-of-bounds reads in AJP getter functions (CVE-2026-33857)

    * httpd: NULL pointer dereference via specially crafted request (CVE-2026-29169)

    * httpd: mod_authn_socache: NULL pointer dereference can cause a child process crash (CVE-2026-33007)

    * Apache HTTP Server: mod_proxy_ajp: Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-     based buffer overflow (CVE-2026-28780)

    * httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)

    * httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server     (CVE-2026-44185)

    * httpd: Apache HTTP Server: Denial of Service via crafted regular expressions (CVE-2026-44631)

    * httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc     (CVE-2026-42536)

    * httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass (CVE-2026-34355)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0c87f546f8 advisory.

    - new version 2.4.67



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2686-1 advisory.

    This update for apache2 fixes the following issues

    - CVE-2026-23918: http2: double free and possible RCE on early reset (bsc#1263957).
    - CVE-2026-24072: mod_rewrite elevation of privileges via ap_expr (bsc#1263935).
    - CVE-2026-28780: heap buffer overflow in `mod_proxy_ajp` via `ajp_msg_check_header()` (bsc#1264163).
    - CVE-2026-29167: mod_ldap per-dir use-after-free (bsc#1267976).
    - CVE-2026-29168: allocation of resources without limits in `mod_md` via OCSP response (bsc#1264150).
    - CVE-2026-29169: NULL pointer dereference in `mod_dav_lock` allows server crash via malicious requests     (bsc#1263956).
    - CVE-2026-29170: mod_proxy_ftp XSS (bsc#1267977).
    - CVE-2026-33006: `mod_auth_digest` timing attack allows bypass of Digest authentication (bsc#1263955).
    - CVE-2026-33007: NULL pointer dereference in `mod_authn_socache` allows unauthenticated remote user to     crash a child       processes (bsc#1263954).
    - CVE-2026-33523: HTTP response splitting forwarding malicious status line (bsc#1263953).
    - CVE-2026-33857: off-by-one OOB reads in AJP getter functions (bsc#1263952).
    - CVE-2026-34032: heap buffer overread in `mod_proxy_ajp` due to missing null-termination check     (bsc#1263951).
    - CVE-2026-34059: heap buffer overread and memory disclosure via `ajp_parse_data()` (bsc#1263950).
    - CVE-2026-34355: mod_proxy_html buffer overflow (bsc#1267978).
    - CVE-2026-34356: malicious backend servers can lead to a heap-based buffer overflow (bsc#1267955).
    - CVE-2026-42535: malicious path manipulation can lead to child process crashes (bsc#1267956).
    - CVE-2026-42536: processing untrusted content can lead to a heap-based buffer overflow (bsc#1267962).
    - CVE-2026-43951: out-of-bound read in `merge_response_headers` can cause crash (bsc#1267963).
    - CVE-2026-44119: improper privilege management can lead to an unauthorized read (bsc#1267965).
    - CVE-2026-44185: Stack Buffer Over-Read in mod_ssl OCSP `send_request` (bsc#1267969).
    - CVE-2026-44186: responses from an attacker-controlled FTP backend can lead to resource exhaustion and a     denial of       service (bsc#1267970).
    - CVE-2026-44631: crafted regular expression can lead to a buffer underwrite (bsc#1267971).
    - CVE-2026-48913: file handle exhaustion during request processing in mod_http2 can lead to a use-after-     free       (bsc#1267972).
    - CVE-2026-49975: Fix cookie header accounting against LimitRequestFields (bsc#1267503).

    Non security issue:

    - Update to 2.4.66 (jsc#PED-16334).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
332824	EulerOS 2.0 SP13 : httpd (EulerOS-SA-2026-3020)	Nessus	Huawei Local Security Checks	8/6/2026	8/6/2026	critical
312249	FreeBSD : www/apache24 -- Multiple vulnerabilities (1ccc383b-486a-11f1-8b62-8447094a420f)	Nessus	FreeBSD Local Security Checks	5/5/2026	5/7/2026	critical
312666	Debian dsa-6248 : apache2 - security update	Nessus	Debian Local Security Checks	5/6/2026	5/6/2026	critical
312237	Linux Distros Unpatched Vulnerability : CVE-2026-29169	Nessus	Misc.	5/5/2026	7/25/2026	high
327970	RHEL 9 : httpd (RHSA-2026:41906)	Nessus	Red Hat Local Security Checks	7/20/2026	7/20/2026	critical
330344	RHEL 10 : httpd (RHSA-2026:47046)	Nessus	Red Hat Local Security Checks	7/28/2026	7/28/2026	critical
316651	Fedora 43 : httpd (2026-0c87f546f8)	Nessus	Fedora Local Security Checks	5/25/2026	5/25/2026	critical
324047	SUSE SLES15: apache2 / apache2-devel / apache2-doc / apache2-prefork / etc (SUSE-SU-2026:2686-1)	Nessus	SuSE Local Security Checks	7/1/2026	7/1/2026	high

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