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Adobe Security Bulletin

Last updated on Mar 11, 2026

Security update available for Adobe Commerce | APSB26-05

Bulletin ID
Date published
Priority
APSB26-05
March 10, 2026
2

Summary

Adobe has released a security update for Adobe Commerce and Magento Open Source. This update resolves critical, important, and moderate vulnerabilities. Successful exploitation could lead to security feature bypass, application denial-of-service, privilege escalation, arbitrary code execution, and arbitrary file system read.

Adobe is not aware of any exploits in the wild for any of the issues addressed in these updates.

Affected versions

Product
Version
Priority rating
Platform
Adobe Commerce
2.4.9-alpha3 and earlier
2.4.8-p3 and earlier
2.4.7-p8 and earlier
2.4.6-p13 and earlier
2.4.5-p15 and earlier
2.4.4-p16 and earlier
2
All
Adobe Commerce B2B
1.5.3-alpha3 and earlier
1.5.2-p3 and earlier
1.4.2-p8 and earlier
1.3.5-p13 and earlier
1.3.4-p15 and earlier
1.3.3-p16 and earlier
2
All
Magento Open Source
2.4.9-alpha3
2.4.8-p3 and earlier
2.4.7-p8 and earlier
2.4.6-p13 and earlier
2.4.5-p15 and earlier
2
All

Solution

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version.

Product
Updated Version
Platform
Priority rating
Installation Instructions
Adobe Commerce
2.4.9-beta1 for 2.4.9-alpha3 / 2.4.8-p4 for 2.4.8-p3 and earlier / 2.4.7-p9 for 2.4.7-p8 and earlier / 2.4.6-p14 for 2.4.6-p13 and earlier / 2.4.5-p16 for 2.4.5-p15 and earlier / 2.4.4-p17 for 2.4.4-p16 and earlier
All
2
Adobe Commerce B2B
1.5.3-beta1 for 1.5.3-alpha3 / 1.5.2-p4 for 1.5.2-p3 and earlier / 1.4.2-p9 for 1.4.2-p8 and earlier / 1.3.5-p14 for 1.3.5-p13 and earlier / 1.3.4-p16 for 1.3.4-p15 and earlier / 1.3.3-p17 for 1.3.3-p16 and earlier
All
2
Magento Open Source
2.4.9-beta1 for 2.4.9-alpha3 / 2.4.8-p4 for 2.4.8-p3 and earlier / 2.4.7-p9 for 2.4.7-p8 and earlier / 2.4.6-p14 for 2.4.6-p13 and earlier / 2.4.5-p16 for 2.4.5-p15 and earlier
All
2

Vulnerability Details

Vulnerability category
Vulnerability impact
Severity
Authentication required to exploit?
Exploit requires admin privileges?
CVSS base score
CVE number
Notes
Cross-site Scripting (Stored XSS) (CWE-79)
Privilege escalation
Critical
Yes
Yes
8.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
CVE-2026-21361
Cross-site Scripting (Stored XSS) (CWE-79)
Privilege escalation
Critical
Yes
Yes
8.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N
CVE-2026-21284
Incorrect Authorization (CWE-863)
Security feature bypass
Critical
Yes
No
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2026-21289
Cross-site Scripting (Stored XSS) (CWE-79)
Privilege escalation
Critical
Yes
Yes
8.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVE-2026-21290
Cross-site Scripting (Stored XSS) (CWE-79)
Privilege escalation
Critical
Yes
No
8.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
CVE-2026-21311
Incorrect Authorization (CWE-863)
Privilege Escalation
Critical
Yes
No
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2026-21309
Incorrect Authorization (CWE-863)
Security feature bypass
Important
Yes
Yes
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2026-21285
Incorrect Authorization (CWE-863)
Security feature bypass
Important
Yes
Yes
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVE-2026-21286
Cross-site Scripting (Stored XSS) (CWE-79)
Arbitrary code execution
Important
Yes
Yes
4.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVE-2026-21291
Cross-site Scripting (Stored XSS) (CWE-79)
Arbitrary code execution
Important
Yes
Yes
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVE-2026-21292
Server-Side Request Forgery (SSRF) (CWE-918)
Security feature bypass
Important
Yes
Yes
5.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CVE-2026-21293
Server-Side Request Forgery (SSRF) (CWE-918)
Security feature bypass
Important
Yes
Yes
5.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
CVE-2026-21294
Incorrect Authorization (CWE-863)
Security feature bypass
Important
Yes
No
4.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:L
CVE-2026-21359
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
Security feature bypass
Important
Yes
Yes
6.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CVE-2026-21360
Improper Input Validation (CWE-20)
Security feature bypass
Important
Yes
Yes
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVE-2026-21282
Improper Input Validation (CWE-20)
Security feature bypass
Important
Yes
Yes
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVE-2026-21310
Incorrect Authorization (CWE-863)
Security feature bypass
Important
Yes
Yes
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVE-2026-21296
Incorrect Authorization (CWE-863)
Security feature bypass
Important
Yes
Yes
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVE-2026-21297
URL Redirection to Untrusted Site ('Open Redirect') (CWE-601)
Security feature bypass
Moderate
Yes
No
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
CVE-2026-21295

Acknowledgements

Adobe would like to thank the following researchers for reporting these issues and working with Adobe to help protect our customers:

  • Akash Hamal (akashhamal0x01) -- CVE-2026-21285, CVE-2026-21286, CVE-2026-21296, CVE-2026-21297, CVE-2026-21310
  • jk-brah -- CVE-2026-21284
  • Simon M -- CVE-2026-21289
  • raywolfmaster -- CVE-2026-21290, CVE-2026-21291, CVE-2026-21292
  • truff -- CVE-2026-21293, CVE-2026-21294, CVE-2026-21361
  • schemonah -- CVE-2026-21295
  • archyxsec -- CVE-2026-21311
  • thlassche -- CVE-2026-21282
  • 0x0.eth (0x0doteth) -- CVE-2026-21309
  • fqdn -- CVE-2026-21359
  • icare -- CVE-2026-21360