External risk intelligence

ColdFusion Path Traversal Leading to Arbitrary Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-48319

ColdFusion is a web application server platform commonly deployed as an internet-facing service to host web applications and APIs. Because it is designed to handle web traffic directly, its management interfaces and application endpoints are frequently reachable from the internet.

Path Traversal

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

ColdFusion, a web application server platform, has a vulnerability that could allow an attacker to execute arbitrary code without user interaction. This issue impacts systems accessible from the internet, posing a risk to hosted applications and APIs. The main concern is confirming relevance and exposure.

Path traversal flaw allows code execution remotely.
Affects internet-facing web application servers.
Confirm relevance and exposure to hosted applications.

Attack Path

How an attacker could exploit the issue

An attacker could potentially execute arbitrary code by exploiting a path traversal vulnerability in ColdFusion. This attack targets a flaw where the software doesn't properly restrict file path access, allowing an attacker to access or manipulate files outside of the intended directory. Successful exploitation could lead to the execution of malicious code with the privileges of the running ColdFusion process, potentially compromising the entire system.

Requires authenticated access.
Triggered by manipulating file path inputs.
Risk of arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

This Improper Limitation of a Pathname to a Restricted Directory vulnerability in ColdFusion could allow an authenticated attacker to execute arbitrary code on the server. When supported by the advisory, the attacker could leverage this by providing specially crafted input, leading to code execution within the privileges of the affected user.

Arbitrary code execution.
Exploited via crafted input.
Server compromise possible.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability impacts Adobe ColdFusion, a platform often deployed to host web applications and APIs that are directly accessible from the internet. Ownership of this issue likely falls to the teams managing the ColdFusion instances, which could include application owners, infrastructure teams, or platform engineers. The first critical step is to identify all ColdFusion deployments, confirm their reachability and business criticality, and then assign an owner for risk-based remediation planning.

Identify ColdFusion instances and owners.
Verify exposure and business criticality.
Plan risk-based remediation.

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?

ColdFusion is a commercial web application server platform. Organizations use it to build, deploy, and host dynamic websites, web applications, and APIs, often acting as the engine that processes data and generates content for users.

What does CVE-2026-48319 mean for ColdFusion?

This CVE describes an Improper Limitation of a Pathname to a Restricted Directory, also known as path traversal (CWE-22). It means the software fails to properly restrict file access, which could allow an attacker to reach files outside the intended directories and ultimately execute malicious code.

How is this path traversal vulnerability triggered?

An attacker triggers this flaw by providing specially crafted input to the ColdFusion server. It is important to note that exploitation requires the attacker to have authenticated access; the vulnerability is not triggered by simple, unauthenticated requests from the general public.

Is my ColdFusion instance at risk?

According to Halo Surface Signal, ColdFusion is often deployed as an internet-facing service to host web applications. If your server is reachable from the internet, it is at higher risk because its management interfaces and application endpoints are exposed to potential attack traffic.

What should I do first to manage this risk?

Begin by identifying all ColdFusion deployments within your infrastructure. Once you have a complete inventory, verify the reachability and business criticality of each instance, and assign ownership to the appropriate teams to plan and prioritize your remediation efforts.

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.