Adobe Security Bulletin

Security update available for Adobe Commerce | APSB26-138

Bulletin ID

Date Published

Priority

APSB26-138

September 8, 2026

2

Summary

Adobe has released a security update for Adobe Commerce and Magento Open Source. This update resolves criticalimportant, and moderate vulnerabilities.  Successful exploitation could result in security feature bypass and privilege escalation.

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

Affected Versions

Product Version Platform
 Adobe Commerce

2.4.9-2026-aug and earlier
2.4.8-2026-aug and earlier
2.4.7-2026-aug and earlier
2.4.6-2026-aug and earlier
2.4.5-2026-aug and earlier
2.4.4-2026-aug and earlier

All
Adobe Commerce B2B

1.5.3-2026-aug and earlier
1.5.2-2026-aug and earlier
1.4.2-2026-aug and earlier
1.3.4-2026-aug and earlier
1.3.3-2026-aug and earlier

All
Magento Open Source

2.4.9-2026-aug and earlier
2.4.8-2026-aug and earlier
2.4.7-2026-aug and earlier
2.4.6-2026-aug and earlier

All

 

Solution

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

Nota

On September 7, 2026, Adobe released a critical security update (APSB26-146) affecting Adobe Commerce and Magento Open Source. Please apply the Hotfix for CVE-2026-75650 in addition to the security updates released in this bulletin.

Product Updated Version Platform Priority Rating Installation Instructions
Adobe Commerce

2.4.9-2026-sep
2.4.8-2026-sep
2.4.7-2026-sep
2.4.6-2026-sep
2.4.5-2026-sep
2.4.4-2026-sep

All 2 Release Notes for September 2026 security update APSB26-138
Adobe Commerce B2B 1.5.3-2026-sep
1.5.2-2026-sep
1.4.2-2026-sep
1.3.4-2026-sep
1.3.3-2026-sep
All 2 Release Notes for September 2026 security update APSB26-138
Magento Open Source 2.4.9-2026-sep
2.4.8-2026-sep
2.4.7-2026-sep
All 2 Release Notes for September 2026 security update APSB26-138

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

Vulnerability Details

Vulnerability Category Vulnerability Impact Severity Authentication required to exploit? CVSS base score
CVSS vector
CVE number(s) Notes

Cross-site Scripting (Stored XSS) (CWE-79)

Privilege escalation

Critical

No

9.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CVE-2026-76200

 

Cross-site Scripting (Stored XSS) (CWE-79)

Privilege Escalation

Critical

No

9.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

CVE-2026-76201

 

Incorrect Authorization (CWE-863)

Security feature bypass

Critical

Yes

8.7

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

CVE-2026-77111

 

Incorrect Authorization (CWE-863)

Privilege escalation

Critical

No

8.6

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

CVE-2026-77109

B2B

Incorrect Authorization (CWE-863)

Security feature bypass

Critical

No

8.6

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVE-2026-77774

 
Incorrect Authorization (CWE-863)

Privilege escalation

Critical

No

8.2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVE-2026-76202

 

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)

Security feature bypass

Critical

Yes

7.6

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:L

CVE-2026-77110

 

Incorrect Authorization (CWE-863)

Privilege escalation

Critical

No

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVE-2026-77108

B2B
Nota
Effective August 11, 2026, Adobe may assign a single CVE identifier to internally discovered vulnerabilities with the same severity rating and CWE category when a release includes systemic fixes.
Nota

Authentication required to exploit: The vulnerability is (or is not) exploitable without credentials.

Acknowledgements

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

  • 0x0.eth (0x0doteth) — CVE-2026-76200, CVE-2026-76201, CVE-2026-77109
  • wohlie — CVE-2026-77108
  • e0x1337 (e0x1337) — CVE-2026-76202

For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.

Adobe, Inc.

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