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Adobe Security Bulletin

Last updated on Apr 14, 2026

Security Update Available for Adobe InDesign | APSB26-32

Bulletin ID
Date published
Priority
APSB26-32
April 14, 2026
3

Summary

Adobe has released a security update for Adobe InDesign. This update addresses critical and important vulnerabilities that could lead to arbitrary code execution, application denial-of-service, and memory exposure.

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

Affected versions

Product
Affected version
Platform
Adobe InDesign
ID21.2 and earlier versions
Windows and macOS
Adobe InDesign
ID20.5.2 and earlier versions
Windows and macOS

Solution

Adobe categorizes these updates with the following priority rating and recommends users update their software installations via the Creative Cloud desktop app updater, or by navigating to the InDesign Help menu and clicking "Updates." For more information, please reference this help page.

Product
Updated version
Platform
Priority rating
Adobe InDesign
ID21.3
Windows and macOS
3
Adobe InDesign
ID20.5.3
Windows and macOS
3

Vulnerability Details

Vulnerability category
Vulnerability impact
Severity
CVSS base score
CVE number
Use After Free (CWE-416)
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-2026-27283
Out-of-bounds Read (CWE-125)
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-2026-27284
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-2026-27291
Heap-based Buffer Overflow (CWE-122)
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-2026-34627
Heap-based Buffer Overflow (CWE-122)
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-2026-34628
Heap-based Buffer Overflow (CWE-122)
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-2026-34629
Heap-based Buffer Overflow (CWE-122)
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-2026-27238
Heap-based Buffer Overflow (CWE-122)
Application denial-of-service
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVE-2026-27285
Heap-based Buffer Overflow (CWE-122)
Memory exposure
Important
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVE-2026-27286

Acknowledgments

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

  • yjdfy -- CVE-2026-27283, CVE-2026-27284
  • Francis Provencher (prl) -- CVE-2026-27285, CVE-2026-27286, CVE-2026-27238, CVE-2026-34627, CVE-2026-34628, CVE-2026-34629
  • jony_juice -- CVE-2026-27291

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