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

Medium 5.3 Published 11 Mar 2026 Updated 27 Aug 2026

An attacker can cause application denial-of-service in Adobe Commerce by providing specially crafted input without user interaction.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-21282?

CVE-2026-21282 is a medium-severity denial of service vulnerability in Adobe Commerce, published on 11 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-20

Which versions are affected by CVE-2026-21282?

It affects 3 products.

Products include Adobe Commerce, Adobe Commerce B2b, Adobe Magento.

How do I fix CVE-2026-21282?

No fix has been published for CVE-2026-21282 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-21282 being exploited?

There is no known exploitation of CVE-2026-21282 in the wild and no public exploit code.

All Adobe Commerce vulnerabilities

Sources

Also known as GHSA-93vq-4p5q-cvfx.