Key points
- Adobe ColdFusion versions up to 2025.0.13 and 2023.0.25 are affected by CVE-2026-106619.
- The vulnerability is rated Critical with a CVSS score of 9.0 due to remote exploitation potential.
- Exploitation requires no user interaction but depends on conditions beyond the attacker's control.
Attackers can execute arbitrary code on Adobe ColdFusion servers without needing a user to click a link or open a file. This capability arises from an improper input validation flaw, classified as CWE-20, which allows malicious data to bypass standard checks. The vulnerability carries a Critical severity rating with a CVSS score of 9.0. It affects Adobe ColdFusion 2025 releases up to version 2025.0.13 and Adobe ColdFusion 2023 releases up to version 2023.0.25.
In plain English
The software fails to properly validate incoming data, allowing attackers to inject commands that the system executes as if they were legitimate instructions. This occurs in the context of the current user, meaning the attacker gains the same level of access as the service running the application. Because no user interaction is required, the attack can be automated and launched against any exposed instance of the vulnerable software. The scope of the vulnerability changes, indicating a significant shift in the security boundary.
The background
The issue is tracked as CVE-2026-106619 in the National Vulnerability Database. It specifically impacts older maintenance releases of Adobe ColdFusion 2023 and 2025. While the flaw allows for arbitrary code execution, the source material notes that exploitation depends on conditions beyond the attacker's control. This suggests that specific environmental configurations or states may be necessary for the attack to succeed, though the exact nature of these conditions is not detailed.
What changes now
Organisations running affected versions of Adobe ColdFusion must treat this as a high-priority risk. The ability to execute code remotely without user interaction significantly reduces the barrier for attackers. Managed service providers should immediately identify all instances of ColdFusion 2023 up to 2023.0.25 and ColdFusion 2025 up to 2025.0.13 within their client environments. Until a patch is confirmed, these systems remain exposed to potential compromise.
The attacker's path
Teams usually monitor for unauthorised command execution indicators in application logs. Check whether input validation rules are strictly enforced at the network edge. This stage of an intrusion serves as initial access, bypassing authentication mechanisms. Analysts often look for anomalous process spawns or unexpected network connections originating from the application server. Understanding the specific conditions required for exploitation helps in tuning detection rules to catch attempts that fail due to missing prerequisites.
What to do and how to stay safe: Adobe ColdFusion
- Audit all ColdFusion instances to identify versions 2023.0.25 and earlier, and 2025.0.13 and earlier.
- Restrict network access to ColdFusion servers, allowing connections only from trusted IP addresses.
- Monitor application logs for signs of unauthorised code execution or unusual input patterns.
- Prepare to apply vendor updates once a confirmed patch for CVE-2026-106619 is released.
Step-by-step guide: Emergency Patching: Correcting Five Common Operational Errors
General security guidance from the RedTeam Log newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Which Adobe ColdFusion versions are vulnerable?
Adobe ColdFusion 2025 up to 2025.0.13 and Adobe ColdFusion 2023 up to 2023.0.25 are affected.
Does this vulnerability require user interaction?
No, exploitation of this issue does not require user interaction.
What is the severity rating of CVE-2026-106619?
The vulnerability is rated Critical with a CVSS score of 9.0.
