CVE-2026-81994
Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)
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.
INFO
Published Date :
Sept. 8, 2026, 9:18 p.m.
Last Modified :
Sept. 10, 2026, 3:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-81994
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 078d4453-3bcd-4900-85e6-15281da43538 | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Adobe Acrobat Reader to the latest version.
- Ensure software is patched against Prototype Pollution.
- Restrict opening untrusted files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-81994.
| URL | Resource |
|---|---|
| https://helpx.adobe.com/security/products/acrobat/apsb26-141.html | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-81994 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-81994
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-81994 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-81994 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 10, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-81994', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-09T17:29:10.269154Z'} -
Initial Analysis by [email protected]
Sep. 10, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N Added CPE Configuration AND OR *cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* versions from (including) 24.0.0 up to (excluding) 24.001.30429 *cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* versions from (including) 15.008.20082 up to (excluding) 26.002.21901 *cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* versions from (including) 15.008.20082 up to (excluding) 26.002.21901 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Added Reference Type Adobe Systems Incorporated: https://helpx.adobe.com/security/products/acrobat/apsb26-141.html Types: Vendor Advisory -
New CVE Received by [email protected]
Sep. 08, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N Added CWE CWE-1321 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/81xxx/CVE-2026-81994.json">CVE-2026-81994</a> Added Reference https://helpx.adobe.com/security/products/acrobat/apsb26-141.html