CVE-2026-87678

medium

An input validation and output encoding vulnerability exists in the web management interface of Brocade Fabric OS versions before 10.0.1.

Vendor / product: Broadcom — fabric operating system

An input validation and output encoding vulnerability exists in the web management interface of Brocade Fabric OS versions before 10.0.1. When configuring Federated Authentication (FA), the system fails to sanitize the Identity Provider (IdP) issuer parameter. An authenticated administrator—or an attacker capable of supplying crafted FA configuration files during an import routine—can inject arbitrary web server directives. This can lead to service denial by preventing the web management daemon from starting, or potentially alter web server security controls.

CVSS

5.2

5.2 (CVSS v3.1)

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-10-08 03:16

Modified: 2026-10-14 14:47

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 06:58 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

broadcom / fabric_operating_system <10.0.1

Weakness classification (CWE)

CWE-93

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://support.broadcom.com/external/content/SecurityAdvisories/0/39138

References

https://support.broadcom.com/external/content/SecurityAdvisories/0/39138 sirt@brocade.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗

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CVE-2026-87678

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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