CVE-2026-34621
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
11th
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.
| CWE | CWE-1321 |
| Vendor | adobe |
| Product | acrobat reader |
| Ecosystems | |
| Industries | TechnologyMedia |
| Published | Apr 11, 2026 |
| Last Updated | Apr 14, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Adobe / Acrobat Reader
0 ≤ 26.001.21367