Improper Input Validation in Adobe ColdFusion
CVE-2026-21273

8.7HIGH

Key Information:

Vendor

Adobe

Vendor
CVE Published:
11 August 2026

What is CVE-2026-21273?

Adobe ColdFusion is susceptible to an Improper Input Validation vulnerability, which may lead to privilege escalation. This issue allows a low-privileged attacker to exploit the flaw and potentially gain unauthorized read and write access to sensitive information. Notably, exploitation requires user interaction; the target must open a specially crafted file designed to activate the vulnerability. This creates an elevated risk, as the attacker's ability to manipulate user actions is essential for successful exploitation. For further details, please refer to the vendor's advisory.

Affected Version(s)

ColdFusion 2023 0 <= 2023.0.22

ColdFusion 2023 0 <= 2023.0.22

ColdFusion 2025 0 <= 2025.0.11

References

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.