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Indesign CVE-2026-21278

MEDIUM
Out-of-bounds Read (CWE-125)
2026-01-13 psirt@adobe.com
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 19:16 nvd
MEDIUM 5.5

DescriptionCVE.org

InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

AnalysisAI

Memory disclosure in Adobe InDesign versions 21.0, 19.5.5 and earlier through out-of-bounds read allows attackers to access sensitive information from application memory when users open specially crafted malicious files. This vulnerability requires user interaction to exploit but requires no special privileges to trigger. No patch is currently available for affected versions.

Technical ContextAI

Classified as CWE-125 (Out-of-bounds Read). Affects Indesign. InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Out-of-bounds Read vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to access sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

RemediationAI

Monitor vendor advisories for a patch.

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CVE-2026-21278 vulnerability details – vuln.today

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