CVE-2026-94584

Race Condition in Broadcom Fabric OS Web Daemon Enables Potential Access Control Bypass

Published Oct 8, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
Description
A race condition and thread-safety vulnerability exists in the web management daemon of Brocade Fabric OS versions before 10.0.1. When handling user authentication requests across a multi-threaded execution pool, this race condition causes PAM modules to process stale or incorrect client IP addresses and switch context numbers. This leads to inaccurate audit records and potential access control bypasses where AAA evaluation or Calling-Station-ID ACL policies rely on client IP attributes.

Remediation

Vendor Solution

Security update is provided in Brocade Fabric OS 10.0.1

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Broadcom
Broadcom fabric Operating System
CPEs cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*
Vendors & Products Broadcom
Broadcom fabric Operating System
Metrics cvssV3_1

{'score': 2.6, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Race Condition in Broadcom Fabric OS Web Daemon Enables Potential Access Control Bypass
First Time appeared Brocade
Brocade fabric Os
Vendors & Products Brocade
Brocade fabric Os
Type Values Removed Values Added
Description A race condition and thread-safety vulnerability exists in the web management daemon of Brocade Fabric OS versions before 10.0.1. When handling user authentication requests across a multi-threaded execution pool, this race condition causes PAM modules to process stale or incorrect client IP addresses and switch context numbers. This leads to inaccurate audit records and potential access control bypasses where AAA evaluation or Calling-Station-ID ACL policies rely on client IP attributes.
Weaknesses CWE-362
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
brocade
Published
Updated
Oct 8, 2026, 3:13 PM
Reserved
Sep 21, 2026, 8:29 PM
Status
Analyzed
Published
Oct 8, 2026, 4:18 AM
Modified
Oct 14, 2026, 7:15 PM