Is CVE-2026-34628 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-34628 being exploited in the wild.

How severe is CVE-2026-34628?

High severity, with a CVSS score of 7.8, published 14 April 2026.

Which products and versions are affected?

Adobe InDesign 20.5.2, 21.2 and earlier.

Is there a fix for CVE-2026-34628?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-34628 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2026-34628?

Check whether you run Adobe InDesign at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-34628: Adobe InDesign heap overflow in file parsing

CVE-2026-34628 · Severity: high · CVSS 7.8 · Published 2026-04-14

Adobe InDesign, a professional desktop publishing and page layout application, is affected by a security flaw that could allow an attacker to take control of a user's computer. To exploit this, an attacker would need to trick a user into opening a specially crafted, malicious InDesign file. Successful exploitation could lead to unauthorized data access, software installation, or complete system compromise in the context of the logged-in user.

Technologies: Adobe InDesign. Vendors: Adobe.

Quick answers

Is CVE-2026-34628 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-34628 being exploited in the wild.
How severe is CVE-2026-34628?: High severity, with a CVSS score of 7.8, published 14 April 2026.
Which products and versions are affected?: Adobe InDesign 20.5.2, 21.2 and earlier.
Is there a fix for CVE-2026-34628?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-34628 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2026-34628?: Check whether you run Adobe InDesign at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A heap-based buffer overflow vulnerability (CWE-122) exists in Adobe InDesign Desktop versions 20.5.2, 21.2 and earlier. The flaw is triggered when the application improperly handles memory allocation while parsing a specially crafted file. An attacker can exploit this by distributing a malicious file that, when opened by a victim, triggers the overflow to execute arbitrary code in the context of the current user. The attack vector is local (AV:L) and requires user interaction (UI:R). Adobe has addressed this in newer versions, and users are advised to update to the latest available releases.

Affected products

Adobe InDesign Desktop 20.5.2, 21.2 and earlier

Timeline

2026-04-14: disclosed
2026-04-14: advisory

References

https://helpx.adobe.com/security/products/indesign/apsb26-32.html

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