CVE-2026-34621

Acrobat Reader versions 24.001.30356, 26.001.21367 and earlier are affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://helpx.adobe.com/security/products/acrobat/apsb26-43.html	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34621	US Government Resource

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:adobe:acrobat_dc:::::continuous:::*
	cpe:2.3:a:adobe:acrobat_reader_dc:::::continuous:::*

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

Configuration 2 (hide)

AND

cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-11 07:16

Updated : 2026-08-28 00:17

NVD link : CVE-2026-34621

Mitre link : CVE-2026-34621

CVE.ORG link : CVE-2026-34621

JSON object : View

Products Affected

microsoft

windows

adobe

acrobat_reader_dc
acrobat
acrobat_dc

apple

macos

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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