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Magento CVE-2026-21282

MEDIUM
Improper Input Validation (CWE-20)
2026-03-11 psirt@adobe.com
Adobe Magento Commerce Commerce B2b
5.3
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 11, 2026 - 03:15 nvd
MEDIUM 5.3

DescriptionNVD

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier are affected by an Improper Input Validation vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability by providing specially crafted input, causing limited impact to application availability. Exploitation of this issue does not require user interaction.

AnalysisAI

Denial-of-service attacks against Adobe Commerce and Magento B2B versions 2.4.4 through 2.4.9-alpha3 are possible through improper input validation that fails to sanitize malicious payloads. An unauthenticated remote attacker can trigger application unavailability by sending specially crafted requests without requiring user interaction. …

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RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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CVE-2026-21282 vulnerability details – vuln.today
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