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 ↗

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

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

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