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macOS 26.x < 26.6 Multiple Vulnerabilities (128067)

high Nessus Plugin ID 330144

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Synopsis

The remote host is missing a macOS update that fixes multiple vulnerabilities

Description

The remote host is running a version of macOS / Mac OS X that is 26.x prior to 26.6. It is, therefore, affected by multiple vulnerabilities:

 - Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol. This issue affects Apache HTTP Server: 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue. (CVE-2026-23918)

 - When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one. (CVE-2026-3783)

 - curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection. (CVE-2026-3784)

 - The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. Processing maliciously crafted web content may result in the disclosure of process memory. (CVE-2026-43740)

 - A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction. (CVE-2026-4424)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.

Solution

Upgrade to macOS 26.6 or later.

See Also

https://support.apple.com/en-us/128067

Plugin Details

Severity: High

ID: 330144

File Name: macos_128067.nasl

Version: 1.1

Type: Local

Agent: macosx

Published: 7/27/2026

Updated: 7/27/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.06

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2026-23918

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:apple:mac_os_x:26.0, cpe:/o:apple:macos:26.0

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/27/2026

Vulnerability Publication Date: 3/11/2026

Reference Information

CVE: CVE-2026-23918, CVE-2026-28911, CVE-2026-28912, CVE-2026-28928, CVE-2026-28931, CVE-2026-28932, CVE-2026-28945, CVE-2026-28973, CVE-2026-28981, CVE-2026-28982, CVE-2026-3783, CVE-2026-3784, CVE-2026-39873, CVE-2026-39874, CVE-2026-39875, CVE-2026-43672, CVE-2026-43673, CVE-2026-43681, CVE-2026-43682, CVE-2026-43693, CVE-2026-43694, CVE-2026-43698, CVE-2026-43710, CVE-2026-43711, CVE-2026-43714, CVE-2026-43723, CVE-2026-43728, CVE-2026-43729, CVE-2026-43730, CVE-2026-43733, CVE-2026-43739, CVE-2026-43740, CVE-2026-43744, CVE-2026-43747, CVE-2026-43748, CVE-2026-43749, CVE-2026-43750, CVE-2026-43753, CVE-2026-43754, CVE-2026-43755, CVE-2026-43756, CVE-2026-43757, CVE-2026-43758, CVE-2026-43759, CVE-2026-43760, CVE-2026-43763, CVE-2026-43764, CVE-2026-43765, CVE-2026-43766, CVE-2026-43767, CVE-2026-43768, CVE-2026-43769, CVE-2026-43770, CVE-2026-43771, CVE-2026-43772, CVE-2026-43773, CVE-2026-43774, CVE-2026-43775, CVE-2026-43776, CVE-2026-43777, CVE-2026-43778, CVE-2026-43779, CVE-2026-43780, CVE-2026-43781, CVE-2026-43782, CVE-2026-43792, CVE-2026-43793, CVE-2026-43796, CVE-2026-43797, CVE-2026-43799, CVE-2026-43800, CVE-2026-43801, CVE-2026-43802, CVE-2026-43803, CVE-2026-43804, CVE-2026-43805, CVE-2026-43806, CVE-2026-43809, CVE-2026-43810, CVE-2026-43812, CVE-2026-43813, CVE-2026-43814, CVE-2026-43816, CVE-2026-43817, CVE-2026-43818, CVE-2026-43819, CVE-2026-43821, CVE-2026-43822, CVE-2026-4424, CVE-2026-64691, CVE-2026-64692, CVE-2026-64693, CVE-2026-64694, CVE-2026-64695, CVE-2026-64696, CVE-2026-64697, CVE-2026-64698, CVE-2026-64699, CVE-2026-64700, CVE-2026-64702, CVE-2026-64703, CVE-2026-64704, CVE-2026-64707, CVE-2026-64708, CVE-2026-64709, CVE-2026-64710, CVE-2026-64711, CVE-2026-64713, CVE-2026-64716, CVE-2026-64718, CVE-2026-64719, CVE-2026-64720, CVE-2026-64721, CVE-2026-64722, CVE-2026-64723, CVE-2026-64724, CVE-2026-64725, CVE-2026-64726, CVE-2026-64727, CVE-2026-64728, CVE-2026-64729, CVE-2026-64730, CVE-2026-64731, CVE-2026-64733, CVE-2026-64734, CVE-2026-64735, CVE-2026-64737, CVE-2026-64738, CVE-2026-64739, CVE-2026-64740, CVE-2026-64743, CVE-2026-64744, CVE-2026-64745, CVE-2026-64746, CVE-2026-64747, CVE-2026-64749, CVE-2026-64751, CVE-2026-64754, CVE-2026-64757, CVE-2026-64758, CVE-2026-64762, CVE-2026-64763, CVE-2026-64764, CVE-2026-64765, CVE-2026-64766, CVE-2026-64767, CVE-2026-64768, CVE-2026-64769, CVE-2026-64770, CVE-2026-64771, CVE-2026-64772, CVE-2026-64774, CVE-2026-64775, CVE-2026-64776, CVE-2026-64783

APPLE-SA: 128067