RockyLinux 9 : httpd (RLSA-2026:21391)

critical Nessus Plugin ID 318032

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21391 advisory.

* 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 RockyLinux 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.

Plugin Details

Severity: Critical

ID: 318032

File Name: rocky_linux_RLSA-2026-21391.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 5/30/2026

Updated: 5/30/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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: 8.5

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

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:mod_lua, p-cpe:/a:rocky:linux:httpd-filesystem, p-cpe:/a:rocky:linux:httpd-devel, p-cpe:/a:rocky:linux:mod_ssl, p-cpe:/a:rocky:linux:mod_proxy_html-debuginfo, p-cpe:/a:rocky:linux:mod_ssl-debuginfo, p-cpe:/a:rocky:linux:httpd, p-cpe:/a:rocky:linux:mod_lua-debuginfo, p-cpe:/a:rocky:linux:mod_ldap-debuginfo, p-cpe:/a:rocky:linux:httpd-manual, p-cpe:/a:rocky:linux:mod_proxy_html, p-cpe:/a:rocky:linux:httpd-core-debuginfo, p-cpe:/a:rocky:linux:httpd-tools-debuginfo, p-cpe:/a:rocky:linux:httpd-core, p-cpe:/a:rocky:linux:httpd-debuginfo, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:mod_ldap, p-cpe:/a:rocky:linux:mod_session-debuginfo, p-cpe:/a:rocky:linux:httpd-debugsource, p-cpe:/a:rocky:linux:httpd-tools, p-cpe:/a:rocky:linux:mod_session

Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/30/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-28780, CVE-2026-33007, CVE-2026-33857, CVE-2026-34032, CVE-2026-34059

Detections

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