CVE-2026-87678 Code injection in Fabric OS
Authenticated attackers can inject web server directives via unsanitized IdP issuer parameters, causing denial of service or bypassing security controls.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87678?
CVE-2026-87678 is a medium-severity code injection vulnerability in Broadcom Fabric Operating System, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-93
Which versions are affected by CVE-2026-87678?
It affects 1 product.
Products include Broadcom Fabric Operating System.
How do I fix CVE-2026-87678?
No fix has been published for CVE-2026-87678 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-87678 being exploited?
There is no known exploitation of CVE-2026-87678 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Fabric Operating System
Sources
Also known as GHSA-2fjw-9jqh-x73f.