Bulletin ID
Last updated on
May 12, 2026
Security update available for Adobe Commerce | APSB26-49
|
|
Date Published |
Priority |
|---|---|---|
|
APSB26-49 |
May 12, 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 arbitrary code execution, arbitrary file system write, application denial-of-service, and security feature bypass.
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-beta1 2.4.8-p4 and earlier 2.4.7-p9 and earlier 2.4.6-p14 and earlier 2.4.5-p16 and earlier 2.4.4-p17 and earlier |
2 | All |
| Adobe Commerce B2B |
1.5.3-beta1 1.5.2-p4 and earlier 1.4.2-p9 and earlier 1.3.4-p16 and earlier 1.3.3-p17 and earlier |
2 | All |
| Magento Open Source | 2.4.9-beta1 2.4.8-p4 and earlier 2.4.7-p9 and earlier 2.4.6-p14 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 2.4.8-p5 2.4.7-p10 2.4.6-p15 2.4.5-p17 2.4.4-p18 |
All | 2 | 2.4.x Release Notes |
| Adobe Commerce B2B | 1.5.3 1.5.2-p5 1.4.2-p10 1.3.4-p17 1.3.3-p18 |
All | 2 | 2.4.x Release Notes |
| Magento Open Source | 2.4.9 2.4.8-p5 2.4.7-p10 2.4.6-p15 |
All | 2 | 2.4.x Release Notes |
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? | Exploit requires admin privileges? |
CVSS base score |
CVSS vector |
CVE number(s) | Notes |
|---|---|---|---|---|---|---|---|---|
| Incorrect Authorization (CWE-863) | Security feature bypass | Critical | Yes | Yes | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | CVE-2026-34645 | |
| Incorrect Authorization (CWE-863) | Security feature bypass | Critical | Yes | Yes | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | CVE-2026-34646 | |
| Server-Side Request Forgery (SSRF) (CWE-918) | Security feature bypass | Critical | Yes | Yes | 7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N | CVE-2026-34647 | |
| Uncontrolled Resource Consumption (CWE-400) | Application denial-of-service | Critical | Yes | No | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE-2026-34648 | |
| Uncontrolled Resource Consumption (CWE-400) | Application denial-of-service | Critical | Yes | No | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE-2026-34649 | |
| Uncontrolled Resource Consumption (CWE-400) | Application denial-of-service | Critical | Yes | No | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE-2026-34650 | |
| Uncontrolled Resource Consumption (CWE-400) | Application denial-of-service | Critical | Yes | No | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE-2026-34651 | |
| Dependency on Vulnerable Third-Party Component (CWE-1395) | Application denial-of-service | Critical | Yes | No | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE-2026-34652 | |
| Cross-site Scripting (Stored XSS) (CWE-79) | Arbitrary code execution | 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-2026-34686 | |
| Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) | Arbitrary file system write | Critical | Yes | Yes | 8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N | CVE-2026-34653 | |
| Dependency on Vulnerable Third-Party Component (CWE-1395) | Application denial-of-service | Important | Yes | No | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVE-2026-34654 | |
| 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-2026-34655 | |
| Improper Authorization (CWE-285) | Security feature bypass | important | Yes | No | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N | CVE-2026-34656 | |
| 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-2026-34658 | |
| Improper Input Validation (CWE-20) | Arbitrary code execution | Moderate | Yes | Yes | 3.4 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N | CVE-2026-34685 |
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:
- thlassche -- CVE-2026-34645, CVE-2026-34646, CVE-2026-34656
- 0x0doteth -- CVE-2026-34647
- bau1u -- CVE-2026-34648, CVE-2026-34649, CVE-2026-34650, CVE-2026-34651
- wash0ut -- CVE-2026-34652
rez0 -- CVE-2026-34653
- akouba -- CVE-2026-34654
srcoder -- CVE-2026-34655
- schemonah -- CVE-2026-34658
- truff -- CVE-2026-34685
- Ray Wolf (raywolfmaster) -- CVE-2026-34686
NOTE: Adobe has a public bug bounty program with HackerOne. If you are interested in working with Adobe as an external security researcher, please check out https://hackerone.com/adobe.
For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.
