Adobe Security Bulletin

Security Update Available for Adobe Lightroom Classic | APSB26-94

Bulletin ID

Date Published

Priority

ASPB26-94

August 11, 2026   

3

Summary

Adobe has released a security update for Adobe Lightroom Classic. This update addresses critical vulnerabilities that could result in arbitrary code execution.

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

Affected Versions

Product

Version

Platform

Lightroom Classic

15.4 and earlier 

Windows

Solution

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version via the Creative Cloud desktop app’s update mechanism.  For more information, please reference this help page.

Product

Version

Platform

Priority Rating

Availability

Lightroom Classic    

15.5

All

3

For managed environments, IT administrators can use the Admin Console to deploy Creative Cloud applications to end users. Refer to this help page for more information.

Vulnerability Details

Vulnerability Category
Vulnerability Impact
Severity
CVSS base score
CVSS vector
CVE Number

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

Arbitrary code execution

Critical

8.6

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

CVE-2026-48441

Deserialization of Untrusted Data (CWE-502)

Arbitrary code execution

Critical

8.6

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

CVE-2026-48397

Integer Overflow or Wraparound (CWE-190) Arbitrary code execution Critical 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2026-47940

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48404

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48405

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48406

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48407

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48408

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48409

Out-of-bounds Write (CWE-787)

Arbitrary code execution

Critical

7.8

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

CVE-2026-48410

Incorrect Authorization (CWE-863)

Arbitrary code execution

Critical

7.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H CVE-2026-48447

 

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.

Acknowledgments

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

  • Kieran (kaiksi) — CVE-2026-48441, CVE-2026-48397, CVE-2026-48447
  • yjdfy — CVE-2026-48404, CVE-2026-48405, CVE-2026-48406, CVE-2026-48407, CVE-2026-48408, CVE-2026-48409, CVE-2026-48410, CVE-2026-47940

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 us out here: https://hackerone.com/adobe.

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

Adobe, Inc.

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