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

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MEDIUM

Adobe Commerce | Improper Input Validation (CWE-20)

Published Mar 11, 2026

5.3

MEDIUM

CVSS 3.1

EPSS 0.52%

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.

Affected products

Vendor Adobe Product Adobe Commerce Default
unaffected
- Version
  0
  Status
  affected
  Constraints
  <=2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16
- Version
  2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17
  Status
  unaffected
  Constraints
  -
Vendor Adobe Product Adobe Commerce B2B Default
unaffected
- Version
  0
  Status
  affected
  Constraints
  <=1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16
- Version
  1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17
  Status
  unaffected
  Constraints
  -
Vendor Adobe Product Magento Open Source Default
unaffected
- Version
  0
  Status
  affected
  Constraints
  <=2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15
- Version
  2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16
  Status
  unaffected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Adobe

Adobe Commerce

unaffected

Version	Status	Constraints
0	affected	<=2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16
2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17	unaffected	-

Adobe

Adobe Commerce B2B

unaffected

Version	Status	Constraints
0	affected	<=1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16
1.5.3-beta1, 1.5.2-p4, 1.4.2-p9, 1.3.5-p14, 1.3.4-p16, 1.3.3-p17	unaffected	-