ColdFusion Flaw Allows Security Bypass

ColdFusion Flaw Allows Security Bypass

Adobe ColdFusion, specifically versions 2023.18, 2025.6, and earlier, is grappling with a significant Improper Input Validation vulnerability, designated as CVE-2026-27282. According to the National Vulnerability Database, this flaw could enable an attacker to bypass critical security features, potentially leading to unauthorized access. While the severity is high, with a CVSS score of 7.5, it’s worth noting that exploitation isn’t entirely trivial; it requires user interaction.

This vulnerability, categorized under CWE-20, highlights a recurring theme in application security: insufficient validation of user-supplied data. When an application doesn’t properly scrutinize inputs, it opens the door for malicious actors to manipulate its logic, circumventing intended controls. For ColdFusion users, this means a potential avenue for threat actors to sidestep existing safeguards, underscoring the importance of vigilant patching and robust input handling practices.

Related ATT&CK Techniques

🛡️ Detection Rules

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high T1190 Initial Access

Web Application Exploitation Attempt — CVE-2026-27282

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Indicators of Compromise

IDTypeIndicator
CVE-2026-27282 Auth Bypass Adobe ColdFusion version 2023.18 and earlier
CVE-2026-27282 Auth Bypass Adobe ColdFusion version 2025.6 and earlier
CVE-2026-27282 Improper Input Validation Security feature bypass

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