#202020

Adobe Security Bulletin

Last updated on May 15, 2026

Security update available for Adobe Commerce | APSB26-49

Bulletin ID

Date published

Priority

APSB26-49

May 12, 2026

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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

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

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

All

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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

2.4.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

2.4.x Release Notes

Magento Open Source

2.4.9
2.4.8-p5
2.4.7-p10
2.4.6-p15

All

2.4.x Release Notes

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Vulnerability Details

Vulnerability category

Vulnerability impact

Severity

Authentication required to exploit?

Exploit requires admin privileges?

CVSS base score

CVSS vector

CVE number

Notes

Incorrect Authorization (CWE-863)

Security feature bypass

Critical

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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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. If you are interested in working with Adobe as an external security researcher, please check out https://app.intigriti.com/programs/adobe/adobepublic/detail.

For more information, visit https://www.adobe.com/trust/security/bug-bounty.html, or email PSIRT@adobe.com.

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APSB26-49

CardTitle

APSB26-49

CardDescription

Priority 2 Security update

CardImage

Created

2026-05-12