Detections
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AlmaLinux 8 : httpd:2.4 (ALSA-2026:42828)
critical Nessus Plugin ID 328975
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:42828 advisory.* httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)
* 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 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)
Bug Fix(es) and Enhancement(s):
* mod_proxy_html regression in CVE-2026-34355 fix [almalinux-8.10.z] (JIRA:AlmaLinux-192751)
Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Critical
ID: 328975
File Name: alma_linux_ALSA-2026-42828.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 7/22/2026
Updated: 7/22/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.11
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2024-42516
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-44631
Vulnerability Information
CPE: cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::sap, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:httpd-devel, p-cpe:/a:alma:linux:httpd-manual, p-cpe:/a:alma:linux:httpd-tools, p-cpe:/a:alma:linux:httpd, p-cpe:/a:alma:linux:mod_http2, p-cpe:/a:alma:linux:mod_ldap, p-cpe:/a:alma:linux:mod_md, p-cpe:/a:alma:linux:mod_proxy_html, p-cpe:/a:alma:linux:mod_session, p-cpe:/a:alma:linux:mod_ssl
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 7/21/2026
Vulnerability Publication Date: 7/8/2025
Reference Information
CVE: CVE-2024-42516, CVE-2026-29169, CVE-2026-34355, CVE-2026-34356, CVE-2026-42536, CVE-2026-43951, CVE-2026-44185, CVE-2026-44186, CVE-2026-44631