Detections
Analytics
AlmaLinux 8 : httpd:2.4 (ALSA-2026:22140)
critical Nessus Plugin ID 318402
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-2026:22140 advisory.* httpd: Apache HTTP Server: HTTP/2 DoS by Memory Increase (CVE-2025-53020)
* 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: 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)
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: 318402
File Name: alma_linux_ALSA-2026-22140.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 6/3/2026
Updated: 6/3/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-28780
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
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:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:alma:linux:mod_session, p-cpe:/a:alma:linux:httpd-manual, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:mod_md, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:httpd-tools, p-cpe:/a:alma:linux:httpd-filesystem, p-cpe:/a:alma:linux:mod_ssl, p-cpe:/a:alma:linux:mod_proxy_html, cpe:/o:alma:linux:8::appstream, p-cpe:/a:alma:linux:mod_ldap, p-cpe:/a:alma:linux:httpd-devel, p-cpe:/a:alma:linux:httpd, p-cpe:/a:alma:linux:mod_http2
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/1/2026
Vulnerability Publication Date: 7/8/2025
Reference Information
CVE: CVE-2025-53020, CVE-2026-28780, CVE-2026-33007, CVE-2026-33857, CVE-2026-34032, CVE-2026-34059