CVE-2026-48362 is a critical security vulnerability in Adobe ColdFusion, a platform many organizations rely on to operate customer portals, internal applications, public websites, business workflows, and data-connected services. If your organization runs an affected ColdFusion deployment, an unauthenticated attacker may be able to execute code on the underlying server remotely, without requiring an employee to click a link, open a file, or otherwise interact with the attack.
For businesses in the United States and Canada, the risk is not limited to technical downtime. A compromised ColdFusion server can interrupt customer-facing services, expose sensitive information, create incident-response costs, and trigger contractual or regulatory obligations. Adobe has issued security updates, and the vulnerability carries a critical CVSS score of 10.0. This post explains the business implications, how to determine whether you are exposed, and the actions you should prioritize. The technical appendix is intended for security engineers, penetration testers, and IT teams responsible for verification and remediation.
Adobe disclosed CVE-2026-48362 on August 11, 2026, as part of security bulletin APSB26-90. The issue affects Adobe ColdFusion 2023 through Update 22 and Adobe ColdFusion 2025 through Update 11, across supported platforms. Adobe assigned the vulnerability a CVSS 3.1 score of 10.0, the highest possible severity rating, and categorized it as critical.
In plain language, the flaw can allow an outside party to send specially crafted input to a vulnerable ColdFusion environment and cause the server to run commands. That means the attacker could act using the permissions available to the ColdFusion service account. No user interaction is required, which makes exposed systems particularly urgent to review.
Adobe’s August 11 bulletin delivered fixed releases, ColdFusion 2023 Update 23 and ColdFusion 2025 Update 12. Adobe later updated the bulletin on September 3, 2026, and stated it was not aware of exploitation in the wild for the issues addressed at that time. The CVE record does not name an external reporter for this specific vulnerability; Adobe’s bulletin lists an acknowledgment for a different CVE in the release.
If you operate an affected ColdFusion server, you should treat this as a high-priority business continuity and cyber-risk issue. The vulnerability can enable remote code execution, meaning an attacker may gain the ability to run unauthorized actions on a server that supports important web applications or internal services. Depending on how that server is configured, the attacker could access application data, alter content, disrupt services, install malicious tools, or use the system as a launching point toward other parts of your environment.
Operationally, a successful compromise can take customer portals, online forms, payment-related workflows, scheduling systems, or partner integrations offline while your team investigates and restores systems. If your ColdFusion applications handle personal information, employee records, health-related data, financial information, or confidential business documents, you may also face notification duties, contractual scrutiny, and legal review.
The reputational impact can be substantial. Customers and business partners expect online services to protect data and remain available. A public incident can weaken trust even after systems are restored. For organizations subject to privacy, financial, healthcare, or public-sector requirements in the United States or Canada, the issue may also affect your ability to demonstrate reasonable security safeguards.
The good news is that Adobe has released fixes. Your immediate priority is to establish whether ColdFusion exists in your environment, identify its version and exposure, apply the vendor update, and verify that no suspicious activity occurred before remediation.
A regional bank: A regional bank uses ColdFusion to support customer-facing forms and internal loan-processing workflows. An attacker who compromises the supporting server could disrupt application availability and potentially gain access to sensitive workflow data. The bank would need to assess customer impact, preserve evidence, notify stakeholders as appropriate, and demonstrate that it acted promptly to contain the incident.
A Canadian healthcare provider: A healthcare organization uses a ColdFusion-based portal to coordinate appointments and exchange information with patients and providers. A server compromise could interrupt patient-facing access and expose systems connected to protected health information. Beyond service restoration, the organization could face privacy assessment, reporting, and communications obligations.
A mid-sized manufacturer: A manufacturer uses ColdFusion for supplier portals, order-status tools, and document workflows. An attacker could alter portal content, disrupt supplier coordination, or use the compromised server to explore adjacent systems. The resulting delays could affect production schedules, deliveries, and customer commitments.
A local government or public institution: A public entity operates ColdFusion applications for permitting, public records, payments, or resident services. A successful attack could make essential online services unavailable and increase the risk of unauthorized access to records. Because these portals are often publicly accessible, response speed and clear governance are especially important.
A patch is essential, but it is not a complete assessment of your exposure. IntegSec can help you identify internet-facing assets, validate ColdFusion patch status, assess compensating controls, and test whether vulnerabilities create practical paths to sensitive systems or business disruption. Our penetration testing services provide clear, prioritized findings that leadership and technical teams can use to reduce risk. Contact IntegSec to strengthen your security posture with focused, evidence-based testing.
CVE-2026-48362 is an OS command injection vulnerability in Adobe ColdFusion, classified as CWE-78, Improper Neutralization of Special Elements used in an OS Command. The vulnerable product versions are ColdFusion 2023 through Update 22 and ColdFusion 2025 through Update 11. Adobe identifies the security impact as arbitrary code execution.
The CVE record states that exploitation can result in arbitrary code execution in the context of the current user. The documented CVSS v3.1 vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H: network reachable, low attack complexity, no privileges required, no user interaction required, changed scope, and high impact to confidentiality, integrity, and availability. This produces a 10.0 critical base score.
The specific vulnerable code path and proof-of-concept details are not provided in Adobe’s public bulletin or the CVE record. Security teams should avoid relying on unverified exploit details and instead prioritize version remediation, exposure reduction, and forensic review. The NVD reference is CVE-2026-48362; the authoritative vendor remediation source is Adobe APSB26-90.
Use asset inventory and host-level verification to identify affected ColdFusion instances. Confirm product versions directly on each server, in centralized configuration management, or through authenticated vulnerability scanning. Adobe identifies ColdFusion 2025 Update 12 and ColdFusion 2023 Update 23 as remediated versions.
Adobe’s official fix should be the first remediation choice. Upgrade ColdFusion 2025 to Update 12 or later, or ColdFusion 2023 to Update 23 or later, following Adobe’s applicable update guidance and change-management process. Adobe assigns the bulletin a Priority 1 rating, indicating the update should receive urgent attention.
Interim controls reduce exposure but do not remove the underlying vulnerability. Keep them in place only until all affected systems are patched and verified. Adobe also recommends applying ColdFusion security configuration settings, reviewing its Lockdown Guides, and keeping the supported Java runtime current.