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VMware Cloud Foundation SDDC Manager Brotli Decoder Out-of-Bounds Write (VMSA-2026-0008)

critical Nessus Plugin ID 373652

Synopsis

A hybrid cloud platform on the remote host is affected by a remote code execution vulnerability.

Description

The version of VMware Cloud Foundation SDDC Manager installed on the remote host is 5.2.x, 9.0.x, 9.1.0, or 9.1.1.
It is, therefore, affected by a remote code execution vulnerability in the Brotli decoder of its Node.js component as referenced in the VMSA-2026-0008 advisory:

 - A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream. (CVE-2026-111497)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

No patch is currently available. Apply the workaround described in VMware KB460732 (SDDC Manager 9.1.1) or KB460734 (SDDC Manager 5.2.x, 9.0.x, and 9.1.0).

See Also

https://knowledge.broadcom.com/external/article/460732

https://knowledge.broadcom.com/external/article/460734

http://www.nessus.org/u?b526b2b8

Plugin Details

Severity: Critical

ID: 373652

File Name: vmware_cloud_foundation_vmsa-2026-0008.nasl

Version: 1.2

Type: Combined

Family: Misc.

Published: 10/29/2026

Updated: 10/31/2026

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Percentile: 99.83

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2026-111497

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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:H/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 9.2

Threat Vector: CVSS:4.0/E:A

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:vmware:cloud_foundation

Required KB Items: Settings/ParanoidReport, installed_sw/VMware Cloud Foundation

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/21/2026

CISA Known Exploited Vulnerability Due Dates: 11/10/2026

Reference Information

CVE: CVE-2026-111497

VMSA: 2026-0008