Detections
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Oracle Linux 9 : httpd (ELSA-2026-88229)

critical Nessus Plugin ID 371065

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-88229 advisory.

 - Related: RHEL-275261 - httpd: Arbitrary code execution via oversized Host header in mod_vhost_alias (CVE-2026-63292)
 - Resolves: RHEL-280369 - httpd: Denial of Service via mod_rewrite lookahead (CVE-2026-56154)
 - Resolves: RHEL-275551 CVE-2026-48005 httpd: Denial of service via forged Authorization headers in mod_auth_digest
 - Resolves: RHEL-275338 CVE-2026-73636 httpd: Authentication bypass via credential replay in mod_auth_digest
 - Resolves: RHEL-275229 CVE-2026-73637 httpd: Authentication state corruption via concurrent Digest authentication requests
 - Resolves: RHEL-275323 CVE-2026-56153 httpd: Denial of Service via heap-based buffer overflow in mod_charset_lite
 - Resolves: RHEL-275307 CVE-2026-46729 httpd: mod_heartmonitor: Denial of Service via NULL pointer dereference
 - Resolves: RHEL-275276 CVE-2026-63045 httpd: unauthorized connection to arbitrary hosts via crafted FTP PASV response
 - Resolves: RHEL-275261 CVE-2026-63292 httpd: Arbitrary code execution via oversized Host header in mod_vhost_alias
 - Resolves: RHEL-275245 CVE-2026-63686 httpd: Denial of Service via charset conversion failure in mod_xml2enc
 - Resolves: RHEL-275214 CVE-2026-93546 httpd: Denial of Service via integer overflow in mod_dav_fs
 - Resolves: RHEL-275176 CVE-2026-63718 httpd: HTTP response smuggling via crafted Transfer-Encoding response in mod_proxy_uwsgi
 - Resolves: RHEL-190807 - httpd: use-after-free in mod_ldap uldap_connection_find via per-directory client cert list (CVE-2026-29167)
 - Resolves: RHEL-192752 - mod_proxy_html regression in CVE-2026-34355 fix
 - Resolves: RHEL-186217 - httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)
 - Resolves: RHEL-182578 - httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)
 - Also addresses CVE-2026-24072, CVE-2026-33006, CVE-2026-42535, CVE-2026-43951, CVE-2026-44119, CVE-2026-44186
 - Resolves: RHEL-186186 - httpd: mod_proxy_html buffer handling vulnerability (CVE-2026-34355)
 - Resolves: RHEL-175636 - httpd: mod_dav_lock uses wrong lock discovery (CVE-2026-29169)
 - Resolves: RHEL-186196 - mod_xml2enc: fix bblen accounting in fix_skipto (CVE-2026-42536)
 - Resolves: RHEL-186164 - httpd: fix OCSP write buffer advancement bug in mod_ssl (CVE-2026-44185)
 - Resolves: RHEL-184312 - httpd: ap_regname restrict to reasonable captures (CVE-2026-44631)
 - Resolves: RHEL-173555 - httpd: Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow (CVE-2026-28780)
 - Resolves: RHEL-175080 - httpd: NULL pointer dereference can cause a child process crash (CVE-2026-33007)
 - Resolves: RHEL-175100 - httpd: off-by-one out-of-bounds reads in AJP getter functions (CVE-2026-33857)
 - Resolves: RHEL-175028 - httpd: heap-based buffer over-read due to missing null-termination check (CVE-2026-34032)

Tenable has extracted the preceding description block directly from the Oracle 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.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-88229.html

Plugin Details

Severity: Critical

ID: 371065

File Name: oraclelinux_ELSA-2026-88229.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/23/2026

Updated: 10/23/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.41

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-2026-56154

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

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 10/1/2026

Reference Information

CVE: CVE-2026-46729, CVE-2026-48005, CVE-2026-56153, CVE-2026-56154, CVE-2026-63045, CVE-2026-63292, CVE-2026-63686, CVE-2026-63718, CVE-2026-73636, CVE-2026-73637, CVE-2026-93546