Apache 2.4.x < 2.4.68 Multiple Vulnerabilities

high Web App Scanning Plugin ID 115263

Synopsis

Apache 2.4.x < 2.4.68 Multiple Vulnerabilities

Description

According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.68. It is, therefore, affected by multiple vulnerabilities:

- Use After Free vulnerability in Apache HTTP Server with mod_ldap in per-directory configuration. (CVE-2026-29167)

- A cross-site scripting vulnerability exists in mod_proxy_ftp's HTML directory list generation when listing FTP directory contents either via forward or reverse proxy configuration. (CVE-2026-29170)

- A buffer overflow in mod_proxy_html in Apache HTTP Server allows an attack by an untrusted backend. (CVE-2026-34355)

- Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie. (CVE-2026-34356)

- A path handling issue in mod_dav_fs allows a WebDAV content author to directly manipulate trusted DAV property databases, potentially causing child process crashes. (CVE-2026-42535)

- Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content. (CVE-2026-42536)

- Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response languages. (CVE-2026-43951)

- Improper Privilege Management vulnerability in Apache HTTP Server allows local .htaccess authors to read files with the privileges of the httpd user. (CVE-2026-44119)

- Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP server. (CVE-2026-44185)

- Loop with Unreachable Exit Condition vulnerability in the mod_proxy_ftp module in Apache HTTP Server with an attacker controlled backend FTP server. (CVE-2026-44186)

- Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. (CVE-2026-44631)

- Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. (CVE-2026-48913)

- Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http2 leads to denial of service via malicious HTTP requests. (CVE-2026-49975)

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

Solution

Upgrade to Apache version 2.4.68 or later.

See Also

https://archive.apache.org/dist/httpd/CHANGES_2.4.68

https://httpd.apache.org/security/vulnerabilities_24.html#2.4.68

Plugin Details

Severity: High

ID: 115263

Type: Version Based

Published: 6/17/2026

Updated: 6/17/2026

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-44631

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2026-29167

CVSS v4

Risk Factor: High

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-49975

Vulnerability Information

CPE: cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-29167, CVE-2026-29170, CVE-2026-34355, CVE-2026-34356, CVE-2026-42535, CVE-2026-42536, CVE-2026-43951, CVE-2026-44119, CVE-2026-44185, CVE-2026-44186, CVE-2026-44631, CVE-2026-48913, CVE-2026-49975

CWE: 122, 124, 125, 126, 269, 416, 668, 789, 79, 835

OWASP: 2010-A2, 2010-A4, 2010-A8, 2013-A3, 2013-A4, 2013-A7, 2013-A9, 2017-A5, 2017-A7, 2017-A9, 2021-A1, 2021-A3, 2021-A4, 2021-A6, 2025-A1, 2025-A5, 2025-A6

WASC: Buffer Overflow, Cross-Site Scripting, Denial of Service, Insufficient Authorization

CAPEC: 122, 209, 233, 540, 58, 588, 591, 592, 63, 85, 92

DISA STIG: APSC-DV-000480, APSC-DV-000500, APSC-DV-002490, APSC-DV-002560, APSC-DV-002590, APSC-DV-002630

HIPAA: 164.306(a)(1), 164.306(a)(2), 164.312(a)(1), 164.312(a)(2)(i), 164.312(e)

ISO: 27001-A.12.6.1, 27001-A.13.1.1, 27001-A.13.1.3, 27001-A.13.2.1, 27001-A.14.1.2, 27001-A.14.1.3, 27001-A.14.2.5, 27001-A.18.1.3, 27001-A.6.2.2, 27001-A.9.1.2, 27001-A.9.4.1, 27001-A.9.4.4, 27001-A.9.4.5

NIST: sp800_53-AC-3, sp800_53-AC-4, sp800_53-CM-6b, sp800_53-SC-5, sp800_53-SI-10, sp800_53-SI-16

OWASP API: 2019-API7, 2023-API8

OWASP ASVS: 4.0.2-14.2.1, 4.0.2-5.3.3

PCI-DSS: 3.2-2.2, 3.2-6.2, 3.2-6.5.2, 3.2-6.5.7, 3.2-6.5.8