CVE-2026-21359: Adobe Commerce | Incorrect Authorization (CWE-863)

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-11 · updated 2026-08-28
Weakness: CWE-863

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 Incorrect Authorization vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and have limited impact to the integrity and availability of data. The exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.

Affected products

Adobe Commerce: before 2.4.4; 2.4.4, 2.4.4-p1, 2.4.4-p10, 2.4.4-p11, 2.4.4-p12, 2.4.4-p13 (+62) — fixed in 2.4.4
Adobe Commerce: before 1.3.3; 1.3.3, 1.3.3-p1, 1.3.3-p10, 1.3.3-p11, 1.3.3-p12, 1.3.3-p13 (+57) — fixed in 1.3.3
Adobe Magento: before 2.4.5; 2.4.5, 2.4.5-p1, 2.4.5-p10, 2.4.5-p11, 2.4.5-p12, 2.4.5-p13 (+43) — fixed in 2.4.5
Adobe Commerce: through 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16
Adobe Commerce: through 1.5.3-alpha3, 1.5.2-p3, 1.4.2-p8, 1.3.5-p13, 1.3.4-p15, 1.3.3-p16
Adobe Magento Open Source: through 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15

How to fix

Upgrade to a fixed version: Adobe Commerce 2.4.4; Adobe Commerce 1.3.3; Adobe Magento 2.4.5. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/magento/apsb26-05.html

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