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CVE-2026-27304 is a critical improper input validation vulnerability in Adobe ColdFusion. It affects ColdFusion 2025 Update 6 and earlier and ColdFusion 2023 Update 18 and earlier. The flaw can be exploited without authentication and without user interaction, and may lead to arbitrary code execution in the context of the current user or ColdFusion process. Available reporting indicates the issue is associated with insufficient validation of attacker-controlled input within ColdFusion components including the administrator-related packages, enabling unauthorized variable manipulation and subsequent code execution. The vulnerability is classified as CWE-20 and has been assigned CVSS v3.1 vector AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N with a base score of 9.3.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An improper input validation vulnerability in Adobe ColdFusion that can lead to arbitrary code execution in the context of the current user without requiring user interaction.
A critical improper input validation vulnerability in Adobe ColdFusion that can enable arbitrary code execution without user interaction, particularly affecting ColdFusion administrative and core configuration services.
An Adobe ColdFusion vulnerability listed in APSB26-38 as an improper input validation flaw that can lead to arbitrary code execution.
An arbitrary code execution vulnerability in Adobe ColdFusion mentioned as also patched in APSB26-38.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.