External risk intelligence

Adobe ColdFusion Path Traversal Allows Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 10.0)

CVE-2026-48282

Adobe ColdFusion is a commercial application server platform typically deployed to host web applications and APIs that are exposed to the internet to serve traffic. Given its role as an application server, it is commonly positioned as a public-facing web service.

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

A critical vulnerability exists in Adobe ColdFusion, a platform used for building and deploying web applications and APIs. This flaw allows for unauthorized code execution without any user interaction, posing a significant security risk.

  • Allows unauthorized code execution.
  • Matters due to potential for remote compromise.
  • Confirm relevance and exposure; address if applicable.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by sending a specially crafted request to a vulnerable ColdFusion server. This request targets a feature that improperly handles file pathnames, allowing the attacker to traverse directories and potentially execute arbitrary code on the server. The exploitation requires no user interaction and can lead to a complete compromise of the server in the context of the running user.

  • No user interaction required.
  • Path traversal in file handling.
  • Arbitrary code execution risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to execute arbitrary code on the server. This happens by manipulating file paths to access or modify system files, potentially leading to a full compromise of the server's capabilities.

  • Arbitrary code execution on server.
  • Path traversal to modify files.
  • Complete server compromise possible.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Real World Ownership section for this CVE should focus on the teams most likely to manage Adobe ColdFusion instances and the immediate steps they need to take. This typically involves application owners who rely on ColdFusion for their services, the infrastructure or platform teams responsible for maintaining the servers, and potentially the network/security teams for exposure assessment. The first critical move is to locate all ColdFusion deployments, determine their business criticality and internet reachability, identify the responsible owner for each instance, and then prioritize remediation based on the assessed risk.

  • Application and infrastructure teams own this.
  • Verify internet-facing, critical systems first.
  • Plan risk-based remediation activities.

Supplementary metadata

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.

Frequently asked questions

What is Adobe ColdFusion?

Adobe ColdFusion is a commercial application server platform used to build and deploy dynamic web applications and APIs. It allows developers to create complex web services by providing a runtime environment that processes server-side scripts and connects to databases. Because it often sits between the internet and backend data, it is a critical component in many enterprise technology stacks.

What does Path Traversal mean for CVE-2026-48282?

This vulnerability, classified as CWE-22, occurs when software fails to properly sanitize file path inputs. An attacker can use special character sequences to 'traverse' outside of the intended directory structure. In the context of CVE-2026-48282, this flaw is dangerous because it allows the attacker to reach restricted areas of the server and ultimately execute arbitrary code, taking control of the system.

How does an attacker trigger this vulnerability?

An attacker triggers this flaw by sending a specially crafted web request to a vulnerable ColdFusion server. This request exploits how the application handles file paths to gain unauthorized access. Importantly, this attack does not require any interaction from a legitimate user or administrator to succeed. If the server is reachable, the malicious request can be processed automatically.

Is my server at risk?

If your instance is reachable from the internet, your risk is elevated. According to Halo Surface Signal, Adobe ColdFusion is typically deployed as a public-facing web service to serve traffic, which aligns with the network-based attack vector of this CVE. You should verify if your deployments are exposed externally or if they are restricted to internal networks, as internet-facing systems are the primary targets.

What are the first steps to secure my environment?

Begin by creating an inventory of all ColdFusion instances within your infrastructure. Identify who owns each server and determine whether it is internet-facing or handles business-critical data. Once you have a clear picture of your landscape, prioritize patching the most exposed and critical systems first to reduce the window of opportunity for an attacker.

References