Incorrect authorization in Adobe products - CVE-2026-21289

Vulnerability identifier: #VU123797

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-21289

CWE-ID: CWE-863

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to incorrect authorization checks. A remote non-authenticated attacker can gain access to sensitive information. 

Adobe Commerce B2B
Magento Open Source
Adobe Commerce (formerly Magento Commerce)

Install updates from vendor's website.

Adobe Commerce B2B - addressed in versions 1.3.3‑p17, 1.3.4-p16, 1.3.5‑p14, 1.4.2‑p9, 1.5.2-p4, 1.5.3 beta1
Magento Open Source - addressed in versions 2.4.5‑p16, 2.4.6-p14, 2.4.7-p9, 2.4.8-p4, 2.4.9‑beta1
Adobe Commerce (formerly Magento Commerce) - addressed in versions 2.4.4‑p17, 2.4.5‑p16, 2.4.6‑p14, 2.4.7‑p9, 2.4.8‑p4, 2.4.9‑beta1

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

• Multiple vulnerabilities in Adobe Commerce and Magento Open Source