What is CVE-2026-21310?

CVE-2026-21310 is a medium-severity vulnerability in Adobe Commerce, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-03-11.

How severe is CVE-2026-21310?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Adobe Commerce

CVE-2026-21310

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 result in a security feature bypass, with limited impact to integri…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (61.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Adobe Commerce — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

helpx.adobe.com/security/products/magento/apsb26-05.html (vendor-advisory)

Frequently asked questions

What is CVE-2026-21310?: CVE-2026-21310 is a medium-severity vulnerability in Adobe Commerce, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-03-11.
How severe is CVE-2026-21310?: Medium severity. CVSS v3 base score is 5.3 out of 10.