External risk intelligence

Adobe ColdFusion Code Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-48322

Adobe ColdFusion is a web application platform frequently deployed as an internet-facing web server or application middleware. Because it is designed to host web applications and APIs, it is commonly exposed to the public internet in standard deployment patterns.

Code Injection

Adobe Coldfusion

20232025

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Adobe ColdFusion that allows for code injection, potentially leading to arbitrary code execution. This issue impacts how the system generates code and could be exploited remotely without user interaction, changing the security scope of the affected system.

Code injection allows remote attackers to execute commands.
It affects internet-facing web application platforms.
Confirm relevance and exposure for ColdFusion deployments.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending specially crafted requests to an internet-facing Adobe ColdFusion server. This bypasses authentication, allowing the attacker to trigger the code injection flaw. Successful exploitation could lead to arbitrary code execution on the server, impacting the confidentiality and integrity of data.

Accessible over the network without authentication.
Specially crafted requests trigger code injection.
Arbitrary code execution in user context.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to execute arbitrary code on the server, impacting system data and potentially service behavior. The code would run with the permissions of the ColdFusion process.

Server-side code execution.
Via network requests.
Compromised system integrity.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Adobe ColdFusion impacts applications running this middleware. Application owners and platform teams are likely responsible for assessing and remediating this risk. The first practical step is to identify all instances of ColdFusion, confirm their internet reachability and business criticality, and then coordinate remediation efforts with the accountable owners.

Application and platform teams own remediation.
Verify internet-facing ColdFusion instances.
Plan maintenance for code execution risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Adobe ColdFusion?

Adobe ColdFusion is a commercial rapid web application development platform. It functions as an application server and middleware, enabling developers to build dynamic websites and complex enterprise APIs. By processing server-side scripts, it acts as the bridge between web traffic and back-end data sources.

What does Code Injection mean in CVE-2026-48322?

This vulnerability, classified as CWE-94, means the software incorrectly handles data provided by a user, allowing it to be interpreted as executable code. In the context of this CVE, an attacker can input malicious commands that the server processes and runs as if they were legitimate instructions, granting them unauthorized control over the server's operations.

How can an attacker trigger this vulnerability?

An attacker triggers the vulnerability by sending specially crafted network requests to a vulnerable ColdFusion server. This process does not require user interaction, such as clicking a link. It is important to note that the flaw involves the generation of code within the system's own architecture, meaning simple non-malicious web traffic will not accidentally activate the flaw.

Do I need to worry about this if my server is internal?

Halo Surface Signal indicates that Adobe ColdFusion is frequently deployed as internet-facing middleware, which significantly increases the risk level for public-facing instances. While internal servers face a lower immediate risk of external exploitation, they remain susceptible to attackers who have already gained a foothold inside your network perimeter.

What should I do first to manage this risk?

Begin by creating a complete inventory of all ColdFusion instances running in your environment. Prioritize mapping which of these are reachable from the internet versus those restricted to internal networks. Once mapped, identify the business owners for these applications to coordinate the deployment of official vendor updates as soon as they become available.

References

helpx.adobe.com/security/products/coldfusion/apsb26-82.html

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.