Bulletin ID
Last updated on
Aug 18, 2026
Security update available for Adobe Commerce | APSB26-XXX
|
|
Date Published |
Priority |
|---|---|---|
|
APSB26-XXX |
September 8, 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 result in security feature bypass, arbitrary code execution, 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 |
All |
| Adobe Commerce B2B |
1.5.3-2026-aug and earlier |
All |
| Magento Open Source | 2.4.9-2026-aug and earlier |
All |
Solution
Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version.
| Product | Updated Version | Platform | Priority Rating | Installation Instructions |
|---|---|---|---|---|
| Adobe Commerce | 2.4.9-2026-aug |
All | 2 | Release Notes for August 2026 security update APSB26-XXX |
| Adobe Commerce B2B | 1.5.3-2026-aug 1.5.2-2026-aug 1.4.2-2026-aug 1.3.4-2026-aug 1.3.3-2026-aug |
All | 2 | Release Notes for August 2026 security update APSB26-XXX |
| Magento Open Source | 2.4.9-2026-aug 2.4.8-2026-aug 2.4.7-2026-aug 2.4.6-2026-aug |
All | 2 | Release Notes for August 2026 security update APSB26-XXX |
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 |
|
|
Cross-site Scripting (Stored XSS) (CWE-79) |
Arbitrary code execution |
Critical |
No |
9.3 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
|
|
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 |
|
|
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 |
|
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 |
|
|
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 |
|
|
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 |
|
B2B |
Incorrect Authorization (CWE-863) |
Privilege escalation |
Critical |
Yes |
7.1 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
|
Note
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.
Note
Authentication required to exploit: The vulnerability is (or is not) exploitable without credentials.
Exploit requires admin privileges: The vulnerability is (or is not) only exploitable by an attacker with administrative privileges.
Acknowledgements
Adobe would like to thank the following researchers for reporting these issues and working with Adobe to help protect our customers:
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.
