CVE-2026-35163
Published:August 21, 2026
Updated:September 24, 2026
OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, Suppressed Command notification popups use PNotify rendering for printer-controlled payload.command and payload.message values in src/octoprint/static/js/app/viewmodels/terminal.js without HTML escaping. An attacker who convinces a victim to print a crafted file can inject HTML and JavaScript into the notification, disrupt prints, read information available to the victim including sensitive settings when permitted, or perform actions in the victim's OctoPrint session. This issue is fixed in versions 1.11.8 and 2.0.0rc3.
Affected Packages
octoprint (PYTHON):
Affected version(s) >=2.0.0rc1 <2.0.0rc3Fix Suggestion:
Update to version 2.0.0rc3octoprint (PYTHON):
Affected version(s) >=1.3.11 <1.11.8Fix Suggestion:
Update to version 1.11.8Related Resources (11)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.6
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.1
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
EPSS
Base Score:
0.14