Description
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.
Published: 2026-08-21
Score: 4.6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-p6qx-ghxm-389h OctoPrint has XSS in its Suppressed Command Notifications
History

Fri, 21 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Octoprint
Octoprint octoprint
Vendors & Products Octoprint
Octoprint octoprint

Fri, 21 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Description 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.
Title OctoPrint: XSS in Suppressed Command Notifications
Weaknesses CWE-80
References
Metrics cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N'}


Subscriptions

Octoprint Octoprint
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-21T19:53:55.905Z

Reserved: 2026-04-01T17:26:21.132Z

Link: CVE-2026-35163

cve-icon Vulnrichment

Updated: 2026-08-21T19:53:51.597Z

cve-icon NVD

Status : Received

Published: 2026-08-21T19:17:01.170

Modified: 2026-08-21T20:16:34.603

Link: CVE-2026-35163

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T20:30:07Z

Weaknesses