CVE-2026-27304 ColdFusion | Improper Input Validation (CWE-20)

Critical 9.3 Published 14 Apr 2026 Updated 27 Aug 2026

Attackers can execute arbitrary code on Adobe ColdFusion servers without user interaction due to improper input validation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-27304?

CVE-2026-27304 is a critical code injection vulnerability in Adobe Coldfusion, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ColdFusion versions 2023.18, 2025.6 and earlier are affected by an Improper Input Validation vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction.

Weakness: CWE-20

Which versions are affected by CVE-2026-27304?

It affects 1 product.

Products include Adobe Coldfusion.

How do I fix CVE-2026-27304?

No fix has been published for CVE-2026-27304 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-2026-27304 being exploited?

There is no known exploitation of CVE-2026-27304 in the wild and no public exploit code.

All Adobe Coldfusion vulnerabilities

Sources

Also known as GHSA-9mp8-pgq2-4399.