Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321) (CVE-2026-81994) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-81994

Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)

Answer in brief

CVE-2026-81994 records a Unknown severity vulnerability in Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321). The current sources do not mark it as known exploited. The current feed maps Adobe/Acrobat 2024 (generic), Adobe/Acrobat Reader (generic), Adobe/Adobe Acrobat (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 8, 2026Updated Sep 8, 2026Source checked Sep 8, 2026First seen by HOL Sep 8, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Adobe/Acrobat 2024 (generic), Adobe/Acrobat Reader (generic), Adobe/Adobe Acrobat (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Adobe/Acrobat 2024generic	0	Not reported
Adobe/Acrobat Readergeneric	0	Not reported
Adobe/Adobe Acrobatgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Adobe/Acrobat 2024, Adobe/Acrobat Reader, Adobe/Adobe Acrobat.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 8, 2026

Sources and claim methodology

Source referencehelpx.adobe.com

Upstream source description

Acrobat Reader is affected by an Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.

Quoted source text, attributed separately from HOL analysis.