---
title: "CVE-2026-81994: Acrobat Reader - Prototype Pollution"
description: "Acrobat Reader contains a prototype pollution vulnerability caused by improperly controlled modification of object prototype attributes, letting attackers read arbitrary files, exploit requires victim to open a malicious file."
url: https://panop.io/threat-heartbeat/CVE-2026-81994/
---

# CVE-2026-81994 Acrobat Reader - Prototype Pollution

Acrobat Reader contains a prototype pollution vulnerability caused by improperly controlled modification of object prototype attributes, letting attackers read arbitrary files, exploit requires victim to open a malicious file.

CVSS base score 8.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.60% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-81994)

## Details

Type

Prototype Pollution

Impact

File System Read, Information Disclosure

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Published

8 September 2026

Updated

15 October 2026

Weakness

[CWE-1321](https://cwe.mitre.org/data/definitions/1321.html)

## Vendor fix

Update Acrobat Reader to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-81994](https://nvd.nist.gov/vuln/detail/CVE-2026-81994)
- [https://helpx.adobe.com/security/products/acrobat/apsb26-141.html](https://helpx.adobe.com/security/products/acrobat/apsb26-141.html)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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