CVE-2025-26487 Server Side Request Forgery (SSRF) in the web server of Infinera MTC-9

High 8.6 Published 8 Dec 2025 Updated 8 Dec 2025

Remote unauthenticated attackers can exploit SSRF in the Infinera MTC-9 web server to access internal network resources via HTTPS requests.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-26487?

CVE-2025-26487 is a high-severity server-side request forgery vulnerability in Infinera MTC-9, published on 8 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server-Side Request Forgery (SSRF) vulnerability in Infinera MTC-9 version allows remote unauthenticated users to gain access to other network resources using HTTPS requests through the appliance used as a bridge.

Weakness: CWE-918

Which versions are affected by CVE-2025-26487?

It affects 1 product.

Products include Nokia Infinera Mtc-9 Firmware.

How do I fix CVE-2025-26487?

No fix has been published for CVE-2025-26487 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2025-26487 being exploited?

There is no known exploitation of CVE-2025-26487 in the wild and no public exploit code.

Sources

Also known as GHSA-fj7m-xhjx-6rw6.