CVE-2026-27308: 
Adobe ColdFusion vulnerability analysis and mitigation

CVE-2026-27308 is an Uncontrolled Resource Consumption vulnerability (CWE-400) in Adobe ColdFusion that could lead to application denial-of-service. It affects ColdFusion versions 2023.18 and earlier, and 2025.6 and earlier. The vulnerability was disclosed on April 14, 2026, with a patch released the same day via Adobe security bulletin APSB26-38. It carries a CVSS v3.1 base score of 2.4 (Low) (Adobe Advisory, GitHub Advisory).

The vulnerability is classified as CWE-400 (Uncontrolled Resource Consumption), meaning the application fails to properly limit the amount of resources it allocates in response to attacker-controlled input. Exploitation requires a high-privileged attacker with adjacent network access (AV:A), meaning the attacker must be on the same network segment or logical network as the target ColdFusion instance. No user interaction is required. The attack pattern is consistent with CAPEC-492 (Regular Expression Exponential Blowup) or CAPEC-147 (XML Ping of the Death), suggesting the vulnerability may involve resource-intensive processing triggered by crafted input (Adobe Advisory, GitHub Advisory).

Successful exploitation allows a high-privileged attacker on an adjacent network to exhaust system resources on the ColdFusion server, causing degraded application performance or a denial-of-service condition. The impact is limited to availability — there is no confidentiality or integrity impact. The scope is unchanged, meaning the effect is confined to the vulnerable ColdFusion application itself without cascading to other system components (Adobe Advisory).

There is no known public proof-of-concept exploit and no evidence of in-the-wild exploitation as of the time of disclosure. The EPSS score is approximately 0.018%, reflecting a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. The high privilege requirement and adjacent network attack vector significantly limit the attacker population (GitHub Advisory).

Adobe has released patches addressing this vulnerability: ColdFusion 2023 Update 19 (version 2023.19) and ColdFusion 2025 Update 7 (version 2025.7) or later. Administrators should apply the security updates detailed in Adobe security bulletin APSB26-38. As a compensating control, restrict network access to ColdFusion administrative interfaces and limit which high-privileged accounts have adjacent network access to the ColdFusion server (Adobe Advisory).

The vulnerability was noted by security monitoring organizations including Check Point, FortiGuard, and CIS, primarily in the context of Adobe's broader April 2026 patch release covering multiple products. Community reaction has been minimal given the low CVSS score, high privilege requirement, and absence of public exploit code. No significant researcher commentary or media coverage specific to this CVE has been identified (CIS Advisory).