Magento Commerce Failure To Invalidate User Session Could Lead To Unauthorized Access

published 2021-02-11 5 y ago modified 2026-09-08 2 mo ago also BIT-magento-2021-21031 , EUVD-2022-2381 , GHSA-4h3p-63x6-vwg2

cvss: 5.6; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits: 0; none known

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) do not adequately invalidate user sessions. Successful exploitation could lead to unauthorized access to restricted resources. Access to the admin console is not required for successful exploitation.

Patch / fix

fixed in 3

packagist magento/community-edition 2.3.6, 2.4.1-p1
bitnami magento 2.3.6, 2.4.1
magento magento 2.3.6

Exploit prediction

1.69% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
GitHub	3.1	5.6	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV	3.0	5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected packages

ecosystem	package	affected	fixed in
packagist	magento/community-edition	>=2.4.0, <2.4.1-p1 <2.3.6	2.4.1-p1 2.3.6
packagist	magento/project-community-edition	<=2.0.2	no fix listed
bitnami	magento	<2.3.6 >=2.4.0, <2.4.1	2.3.6 2.4.1

Affected products

Adobe Magento.com

Classification

Weakness

CWE-613 DEPRECATED: Insufficient Session Expiration

References

helpx.adobe.com /security/products/magento/apsb21-08.html
web, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2021-21031
advisory, web
github.com /magento/magento2
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary