SUSE SLES15: apache2 / apache2-devel / apache2-doc / apache2-prefork / etc (SUSE-SU-2026:2686-1)

high Nessus Plugin ID 324047

Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2686-1 advisory.

This update for apache2 fixes the following issues

- CVE-2026-23918: http2: double free and possible RCE on early reset (bsc#1263957).
- CVE-2026-24072: mod_rewrite elevation of privileges via ap_expr (bsc#1263935).
- CVE-2026-28780: heap buffer overflow in `mod_proxy_ajp` via `ajp_msg_check_header()` (bsc#1264163).
- CVE-2026-29167: mod_ldap per-dir use-after-free (bsc#1267976).
- CVE-2026-29168: allocation of resources without limits in `mod_md` via OCSP response (bsc#1264150).
- CVE-2026-29169: NULL pointer dereference in `mod_dav_lock` allows server crash via malicious requests (bsc#1263956).
- CVE-2026-29170: mod_proxy_ftp XSS (bsc#1267977).
- CVE-2026-33006: `mod_auth_digest` timing attack allows bypass of Digest authentication (bsc#1263955).
- CVE-2026-33007: NULL pointer dereference in `mod_authn_socache` allows unauthenticated remote user to crash a child processes (bsc#1263954).
- CVE-2026-33523: HTTP response splitting forwarding malicious status line (bsc#1263953).
- CVE-2026-33857: off-by-one OOB reads in AJP getter functions (bsc#1263952).
- CVE-2026-34032: heap buffer overread in `mod_proxy_ajp` due to missing null-termination check (bsc#1263951).
- CVE-2026-34059: heap buffer overread and memory disclosure via `ajp_parse_data()` (bsc#1263950).
- CVE-2026-34355: mod_proxy_html buffer overflow (bsc#1267978).
- CVE-2026-34356: malicious backend servers can lead to a heap-based buffer overflow (bsc#1267955).
- CVE-2026-42535: malicious path manipulation can lead to child process crashes (bsc#1267956).
- CVE-2026-42536: processing untrusted content can lead to a heap-based buffer overflow (bsc#1267962).
- CVE-2026-43951: out-of-bound read in `merge_response_headers` can cause crash (bsc#1267963).
- CVE-2026-44119: improper privilege management can lead to an unauthorized read (bsc#1267965).
- CVE-2026-44185: Stack Buffer Over-Read in mod_ssl OCSP `send_request` (bsc#1267969).
- CVE-2026-44186: responses from an attacker-controlled FTP backend can lead to resource exhaustion and a denial of service (bsc#1267970).
- CVE-2026-44631: crafted regular expression can lead to a buffer underwrite (bsc#1267971).
- CVE-2026-48913: file handle exhaustion during request processing in mod_http2 can lead to a use-after- free (bsc#1267972).
- CVE-2026-49975: Fix cookie header accounting against LimitRequestFields (bsc#1267503).

Non security issue:

- Update to 2.4.66 (jsc#PED-16334).

Tenable has extracted the preceding description block directly from the SUSE 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: High

ID: 324047

File Name: suse_SU-2026-2686-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/1/2026

Updated: 7/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.07

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS Score Source: CVE-2022-31813

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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:F/RL:O/RC:C

CVSS Score Source: CVE-2024-38476

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 8.7

Threat Vector: CVSS:4.0/E:A

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: p-cpe:/a:novell:suse_linux:apache2-prefork, p-cpe:/a:novell:suse_linux:apache2-devel, p-cpe:/a:novell:suse_linux:apache2-utils, p-cpe:/a:novell:suse_linux:apache2, p-cpe:/a:novell:suse_linux:apache2-doc, p-cpe:/a:novell:suse_linux:apache2-worker, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/30/2026

Vulnerability Publication Date: 12/20/2021

CISA Known Exploited Vulnerability Due Dates: 5/22/2025

Reference Information

CVE: CVE-2006-20001, CVE-2021-44224, CVE-2021-44790, CVE-2022-22719, CVE-2022-22720, CVE-2022-22721, CVE-2022-23943, CVE-2022-26377, CVE-2022-28614, CVE-2022-28615, CVE-2022-29404, CVE-2022-30522, CVE-2022-30556, CVE-2022-31813, CVE-2022-36760, CVE-2022-37436, CVE-2023-25690, CVE-2023-27522, CVE-2023-31122, CVE-2023-38709, CVE-2023-45802, CVE-2024-24795, CVE-2024-27316, CVE-2024-38473, CVE-2024-38474, CVE-2024-38475, CVE-2024-38476, CVE-2024-38477, CVE-2024-39573, CVE-2024-39884, CVE-2024-40725, CVE-2024-42516, CVE-2024-43204, CVE-2024-47252, CVE-2025-23048, CVE-2025-49630, CVE-2025-49812, CVE-2025-53020, CVE-2025-55753, CVE-2025-58098, CVE-2025-65082, CVE-2025-66200, CVE-2026-23918, CVE-2026-24072, CVE-2026-28780, CVE-2026-29167, CVE-2026-29168, CVE-2026-29169, CVE-2026-29170, CVE-2026-33006, CVE-2026-33007, CVE-2026-33523, CVE-2026-33857, CVE-2026-34032, CVE-2026-34059, 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

IAVA: 2021-A-0604-S, 2022-A-0124-S, 2022-A-0230-S, 2023-A-0047-S, 2023-A-0124-S, 2023-A-0572-S, 2024-A-0202-S, 2024-A-0378-S, 2024-A-0411-S, 2025-A-0508-S, 2025-A-0889-S, 2026-A-0423-S, 2026-A-0558

SuSE: SUSE-SU-2026:2686-1

Detections

Analytics

SUSE SLES15: apache2 / apache2-devel / apache2-doc / apache2-prefork / etc (SUSE-SU-2026:2686-1)

high Nessus Plugin ID 324047

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

VPR

CVSS v2

CVSS v3

CVSS v4

Vulnerability Information

Reference Information