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Adobe Security Bulletin

Last updated on Sep 22, 2026

Security Update Available for Adobe InDesign | APSB26-145

Bulletin ID
Date published
Priority
APSB26-145
September 22, 2026
3
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Summary

Adobe has released a security update for Adobe InDesign. This update addresses an important vulnerabilities that could result in application denial-of-service.

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

Affected Versions

Product
Affected version
Platform
Adobe InDesign
ID21.5 and earlier versions
Windows and macOS
Adobe InDesign
ID20.5.4 and earlier versions
Windows and macOS
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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.

For managed environments, IT administrators can use the Creative Cloud Packager to create deployment packages. Refer to this help page for more information.

Product
Updated version
Platform
Priority rating
Adobe InDesign
ID21.6
Windows and macOS
3
Adobe InDesign
ID20.5.5
Windows and macOS
3
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Vulnerability Details

Vulnerability impact
Severity
CVSS base score
CVSS vector
CVE number
Vulnerability Category
Vulnerability Impact
Severity
CVSS base score
CVSS vector
CVE Number
NULL Pointer Dereference (CWE-476)
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-2026-84396
NULL Pointer Dereference (CWE-476)
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-2026-76192

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.

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Acknowledgments

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

  • Francis provencher (prl) — CVE-2026-76192, CVE-2026-84396

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://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.