Arbitrary file read via prototype pollution
Published Sep 8, 2026 · Updated Sep 10, 2026
Prototype pollution in Adobe Acrobat products allows local users to read arbitrary files after a victim opens a malicious PDF. Adobe identifies improperly controlled modification of object prototype attributes, but has not published the affected parser, object path, or unsafe assignment. Exploitation requires a victim to open the crafted file, after which sensitive files and directories outside the intended access scope can be read.
Summary
What happened
Prototype pollution in Adobe Acrobat products allows local users to read arbitrary files after a victim opens a malicious PDF. Adobe identifies improperly controlled modification of object prototype attributes, but has not published the affected parser, object path, or unsafe assignment. Exploitation requires a victim to open the crafted file, after which sensitive files and directories outside the intended access scope can be read.
The record
- CVE
- CVE-2026-81994
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Adobe
- Product
- Adobe Acrobat Pro 2024
- Classifications
- CWE-1321, T1203, T1204.002, T1005
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=24.001.30383
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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