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Zero-dayApr 13, 2026

‼️ CVE-2026-34621: Adobe Acrobat Reader Prototype Pollution Zero-Day Enables Code Execution via M...

Adobe Acrobat Reader zero-day prototype pollution flaw enables code execution via malicious PDFs.

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Summary

CVE-2026-34621 is a critical zero-day vulnerability in Adobe Acrobat Reader that exploits prototype pollution to achieve remote code execution when processing specially crafted PDF files. The vulnerability allows attackers to execute arbitrary code on affected systems through malicious PDF delivery.

Indicators of Compromise

  • cve — CVE-2026-34621

Entities

Adobe Acrobat Reader (product)Adobe (vendor)