CVE-2026-21273

High

Description

is affected by an Improper Input Validation vulnerability that could result in privilege escalation. A low-privileged attacker could exploit this vulnerability to gain unauthorized read and write access. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

SeverityHigh

CVSS8.7

Exploit probability—

Product

Adobe Coldfusion

PublishedAug 11, 2026

First seenAug 11, 2026

Weakness typeCWE-20Improper input validation

How to fix

Vendor advisories

helpx.adobe.com/security/products/coldfusion/apsb26-90.html

Affected products

Product	Affected versions	Fixed in
adobe coldfusion	2023, 2025	—

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