CVE-2026-21282: Adobe Commerce | Improper Input Validation (CWE-20)

Published Mar 11, 2026
·
Updated

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.

Affected Software

184 affected components
Adobe Commerce<2.4.9-alpha3
Adobe Commerce<2.4.4
Adobe Commerce=2.4.4
Adobe Commerce=2.4.4-p1
Adobe Commerce=2.4.4-p10
Adobe Commerce=2.4.4-p11
Adobe Commerce=2.4.4-p12
Adobe Commerce=2.4.4-p13
Adobe Commerce=2.4.4-p14
Adobe Commerce=2.4.4-p15
Adobe Commerce=2.4.4-p16
Adobe Commerce=2.4.4-p2
Adobe Commerce=2.4.4-p3
Adobe Commerce=2.4.4-p4
Adobe Commerce=2.4.4-p5
Adobe Commerce=2.4.4-p6
Adobe Commerce=2.4.4-p7
Adobe Commerce=2.4.4-p8
Adobe Commerce=2.4.4-p9
Adobe Commerce=2.4.5
Adobe Commerce=2.4.5-p1
Adobe Commerce=2.4.5-p10
Adobe Commerce=2.4.5-p11
Adobe Commerce=2.4.5-p12
Adobe Commerce=2.4.5-p13
Adobe Commerce=2.4.5-p14
Adobe Commerce=2.4.5-p15
Adobe Commerce=2.4.5-p2
Adobe Commerce=2.4.5-p3
Adobe Commerce=2.4.5-p4
Adobe Commerce=2.4.5-p5
Adobe Commerce=2.4.5-p6
Adobe Commerce=2.4.5-p7
Adobe Commerce=2.4.5-p8
Adobe Commerce=2.4.5-p9
Adobe Commerce=2.4.6
Adobe Commerce=2.4.6-p1
Adobe Commerce=2.4.6-p10
Adobe Commerce=2.4.6-p11
Adobe Commerce=2.4.6-p12
Adobe Commerce=2.4.6-p13
Adobe Commerce=2.4.6-p2
Adobe Commerce=2.4.6-p3
Adobe Commerce=2.4.6-p4
Adobe Commerce=2.4.6-p5
Adobe Commerce=2.4.6-p6
Adobe Commerce=2.4.6-p7
Adobe Commerce=2.4.6-p8
Adobe Commerce=2.4.6-p9
Adobe Commerce=2.4.7
Adobe Commerce=2.4.7-b1
Adobe Commerce=2.4.7-b2
Adobe Commerce=2.4.7-beta3
Adobe Commerce=2.4.7-p1
Adobe Commerce=2.4.7-p2
Adobe Commerce=2.4.7-p3
Adobe Commerce=2.4.7-p4
Adobe Commerce=2.4.7-p5
Adobe Commerce=2.4.7-p6
Adobe Commerce=2.4.7-p7
Adobe Commerce=2.4.7-p8
Adobe Commerce=2.4.8
Adobe Commerce=2.4.8-beta1
Adobe Commerce=2.4.8-beta2
Adobe Commerce=2.4.8-p1
Adobe Commerce=2.4.8-p2
Adobe Commerce=2.4.8-p3
Adobe Commerce=2.4.9-alpha1
Adobe Commerce=2.4.9-alpha2
Adobe Commerce=2.4.9-alpha3
Adobe Commerce B2b<1.3.3
Adobe Commerce B2b=1.3.3
Adobe Commerce B2b=1.3.3-p1
Adobe Commerce B2b=1.3.3-p10
Adobe Commerce B2b=1.3.3-p11
Adobe Commerce B2b=1.3.3-p12
Adobe Commerce B2b=1.3.3-p13
Adobe Commerce B2b=1.3.3-p14
Adobe Commerce B2b=1.3.3-p15
Adobe Commerce B2b=1.3.3-p16
Adobe Commerce B2b=1.3.3-p2
Adobe Commerce B2b=1.3.3-p3
Adobe Commerce B2b=1.3.3-p4
Adobe Commerce B2b=1.3.3-p5
Adobe Commerce B2b=1.3.3-p6
Adobe Commerce B2b=1.3.3-p7
Adobe Commerce B2b=1.3.3-p8
Adobe Commerce B2b=1.3.3-p9
Adobe Commerce B2b=1.3.4
Adobe Commerce B2b=1.3.4-p1
Adobe Commerce B2b=1.3.4-p10
Adobe Commerce B2b=1.3.4-p11
Adobe Commerce B2b=1.3.4-p12
Adobe Commerce B2b=1.3.4-p13
Adobe Commerce B2b=1.3.4-p14
Adobe Commerce B2b=1.3.4-p15
Adobe Commerce B2b=1.3.4-p2
Adobe Commerce B2b=1.3.4-p3
Adobe Commerce B2b=1.3.4-p4
Adobe Commerce B2b=1.3.4-p5
Adobe Commerce B2b=1.3.4-p6
Adobe Commerce B2b=1.3.4-p7
Adobe Commerce B2b=1.3.4-p8
Adobe Commerce B2b=1.3.4-p9
Adobe Commerce B2b=1.3.5
Adobe Commerce B2b=1.3.5-p1
Adobe Commerce B2b=1.3.5-p10
Adobe Commerce B2b=1.3.5-p11
Adobe Commerce B2b=1.3.5-p12
Adobe Commerce B2b=1.3.5-p13
Adobe Commerce B2b=1.3.5-p2
Adobe Commerce B2b=1.3.5-p3
Adobe Commerce B2b=1.3.5-p4
Adobe Commerce B2b=1.3.5-p5
Adobe Commerce B2b=1.3.5-p6
Adobe Commerce B2b=1.3.5-p7
Adobe Commerce B2b=1.3.5-p8
Adobe Commerce B2b=1.3.5-p9
Adobe Commerce B2b=1.4.2
Adobe Commerce B2b=1.4.2-p1
Adobe Commerce B2b=1.4.2-p2
Adobe Commerce B2b=1.4.2-p3
Adobe Commerce B2b=1.4.2-p4
Adobe Commerce B2b=1.4.2-p5
Adobe Commerce B2b=1.4.2-p6
Adobe Commerce B2b=1.4.2-p7
Adobe Commerce B2b=1.4.2-p8
Adobe Commerce B2b=1.5.2
Adobe Commerce B2b=1.5.2-p1
Adobe Commerce B2b=1.5.2-p2
Adobe Commerce B2b=1.5.2-p3
Adobe Commerce B2b=1.5.3-alpha1
Adobe Commerce B2b=1.5.3-alpha2
Adobe Commerce B2b=1.5.3-alpha3
Adobe Magento<2.4.5
Adobe Magento=2.4.5
Adobe Magento=2.4.5-p1
Adobe Magento=2.4.5-p10
Adobe Magento=2.4.5-p11
Adobe Magento=2.4.5-p12
Adobe Magento=2.4.5-p13
Adobe Magento=2.4.5-p14
Adobe Magento=2.4.5-p15
Adobe Magento=2.4.5-p2
Adobe Magento=2.4.5-p3
Adobe Magento=2.4.5-p4
Adobe Magento=2.4.5-p5
Adobe Magento=2.4.5-p6
Adobe Magento=2.4.5-p7
Adobe Magento=2.4.5-p8
Adobe Magento=2.4.5-p9
Adobe Magento=2.4.6
Adobe Magento=2.4.6-p1
Adobe Magento=2.4.6-p10
Adobe Magento=2.4.6-p11
Adobe Magento=2.4.6-p12
Adobe Magento=2.4.6-p13
Adobe Magento=2.4.6-p2
Adobe Magento=2.4.6-p3
Adobe Magento=2.4.6-p4
Adobe Magento=2.4.6-p5
Adobe Magento=2.4.6-p6
Adobe Magento=2.4.6-p7
Adobe Magento=2.4.6-p8
Adobe Magento=2.4.6-p9
Adobe Magento=2.4.7
Adobe Magento=2.4.7-b1
Adobe Magento=2.4.7-b2
Adobe Magento=2.4.7-beta3
Adobe Magento=2.4.7-p1
Adobe Magento=2.4.7-p2
Adobe Magento=2.4.7-p3
Adobe Magento=2.4.7-p4
Adobe Magento=2.4.7-p5
Adobe Magento=2.4.7-p6
Adobe Magento=2.4.7-p7
Adobe Magento=2.4.7-p8
Adobe Magento=2.4.8
Adobe Magento=2.4.8-beta1
Adobe Magento=2.4.8-beta2
Adobe Magento=2.4.8-p1
Adobe Magento=2.4.8-p2
Adobe Magento=2.4.8-p3
Adobe Magento=2.4.9-alpha3

Event History

Mar 11, 2026
CVE Published
via MITRE·02:19 AM
Data Sourced
via MITRE·02:19 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-21282?

CVE-2026-21282 is considered a significant vulnerability due to its potential to cause denial-of-service in affected Adobe Commerce versions.

2

How do I fix CVE-2026-21282?

To mitigate CVE-2026-21282, upgrade your Adobe Commerce installation to the latest version that resolves this input validation issue.

3

What versions are affected by CVE-2026-21282?

Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, and 2.4.4-p16 and earlier are impacted by CVE-2026-21282.

4

What type of vulnerability is CVE-2026-21282?

CVE-2026-21282 is categorized as an Improper Input Validation vulnerability which can lead to a denial-of-service condition.

5

Can CVE-2026-21282 be exploited remotely?

Yes, an attacker can exploit CVE-2026-21282 remotely, potentially leading to application denial-of-service.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203