CVE-2026-34621

Adobe Acrobat and Reader Prototype Pollution Vulnerability

Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution. Vendor/Product: Adobe Acrobat and Reader. Added to CISA KEV 2026-04-13; required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Category: Vulnerability, Known Exploited