Adobe Acrobat and Reader Prototype Pollution Vulnerability
Adobe — Acrobat and Reader
- Added to KEV catalog
- 13 April 2026
- Federal remediation due date
- 27 April 2026
- Weakness classification (CWE)
- CWE-1321
CISA Description
Adobe Acrobat and Reader contain a prototype pollution vulnerability that allows for arbitrary code execution.
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.
Notes
https://helpx.adobe.com/security/products/acrobat/apsb26-43.html ; https://nvd.nist.gov/vuln/detail/CVE-2026-34621
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