Prototype Pollution in Adobe Acrobat Reader Allows Unauthorized File Access
CVE-2026-81994

8.2HIGH

Key Information:

Vendor

Adobe

Vendor
CVE Published:
8 September 2026

What is CVE-2026-81994?

Adobe Acrobat Reader is susceptible to a Prototype Pollution vulnerability that could facilitate unauthorized access to sensitive files and directories. This issue arises when an attacker manipulates the object's prototype attributes, resulting in arbitrary file system read capabilities. To exploit this vulnerability, the victim must interact with a malicious file, which can disrupt the intended access control and lead to significant security risks.

Affected Version(s)

Acrobat 2024 0 <= 24.001.30383

Acrobat Reader 0 <= 26.002.21900

Adobe Acrobat 0 <= 26.002.21900

References

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.