CVE-2026-16633
Published:August 07, 2026
Updated:August 12, 2026
Impact If PDF.js is used to load a malicious PDF, and PDF.js is configured with "enableScripting" set to true (which is the default value) and no CSP for disallowing script-src, unrestricted attacker-controlled JavaScript will be executed in the context of the hosting domain. Patches Workarounds Set "enableScripting" to "false" or set a CSP.
Affected Packages
pdf.js (CDN_JS):
Affected version(s) >=5.6.205 <6.2.108Fix Suggestion:
Update to version 6.2.108https://github.com/mozilla/pdf.js.git (GITHUB):
Affected version(s) >=v5.6.205 <v6.2.108Fix Suggestion:
Update to version v6.2.108pdfjs-dist (NPM):
Affected version(s) >=5.6.205 <6.2.108Fix Suggestion:
Update to version 6.2.108Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')