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CVE-2026-27304 is a critical improper input validation vulnerability in Adobe ColdFusion affecting ColdFusion 2025 Update 6 and earlier and ColdFusion 2023 Update 18 and earlier, also described as versions 2025.6 and earlier and 2023.18 and earlier. Adobe states the flaw can result in arbitrary code execution in the context of the current user and does not require user interaction. Supporting reporting further indicates the issue is remotely exploitable with no authentication required, has CVSS v3.1 vector AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N, and appears to involve ColdFusion components/packages including adminapi, administrator, and CCS. The available content attributes the root cause to improper validation of attacker-controlled input, which may allow unauthorized variable modification and ultimately code execution within the ColdFusion process context.
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No public exploit code observed for this vulnerability.
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10 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.