Adobe Acrobat Reader Vulnerabilities Let Attackers Execute Arbitrary Code

Adobe published a critical security bulletin on 2026-04-14 addressing two Prototype Pollution vulnerabilities in Acrobat and Reader affecting Windows and macOS: CVE-2026-34622 (RCE, CVSS 8.6) and CVE-2026-34626 (arbitrary file reads, CVSS 6.3). Affected Continuous and Classic Track versions are listed and Adobe urges users and administrators to apply patches (26.001.21431 and 24.001.30365) promptly; no active exploits are currently known.