CVE-2026-34622 Details
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 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.
A prototype pollution vulnerability has been identified in Adobe Acrobat and Acrobat Reader DC. This issue affects versions through 26.001.21411, as well as Acrobat 2024 versions through 24.001.30362 on Windows and macOS. The vulnerability allows for improper control over the modification of object prototype attributes, which could lead to arbitrary code execution in the context of the current user. Exploitation requires user interaction, as a victim must open a malicious file.
Users are advised to update to the latest versions of Adobe Acrobat or Acrobat Reader DC. The latest versions can be downloaded from the Adobe website or via the Adobe Update mechanism. For IT administrators, updates can be deployed using preferred methodologies such as SCUP/SCCM on Windows or Apple Remote Desktop and SSH on macOS.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://helpx.adobe.com/security/products/acrobat/apsb26-44.html | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1321 | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| adobe acrobat | >= 24.0.0, < 24.001.30365 |
CPE
Remediation
| |
| adobe acrobat dc | >= 15.008.20082, < 26.001.21431 |
CPE
Remediation
| |
| adobe acrobat reader dc | >= 15.008.20082, < 26.001.21431 |
CPE
Remediation
| |
| apple macos | All versions |
CPE
Remediation
| |
| microsoft windows | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 28, 2026 | CVE Modified | [email protected] |
| Aug 27, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 14, 2026 | New CVE Received | [email protected] |