CVE-2026-34626

Medium

Description

Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could result in arbitrary file system read in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

SeverityMedium

CVSS6.3

Exploit probability27. percentile0.3%

Product

Adobe Acrobat

PublishedApr 14, 2026

First seenApr 14, 2026

Weakness typeCWE-1321Prototype pollution

How to fix

Update

adobe acrobat24.001.30365 or later
adobe acrobat_dc26.001.21431 or later
adobe acrobat_reader_dc26.001.21431 or later

Vendor advisories

helpx.adobe.com/security/products/acrobat/apsb26-44.html

Affected products

Product	Affected versions	Fixed in
adobe acrobat	24.0.0 ≤ v < 24.001.30365	24.001.30365
adobe acrobat_dc	15.008.20082 ≤ v < 26.001.21431	26.001.21431
adobe acrobat_reader_dc	15.008.20082 ≤ v < 26.001.21431	26.001.21431

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