CVE-2026-35163

UNKNOWN 0.0

OctoPrint: XSS in Suppressed Command Notifications

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-80
Vendor	octoprint
Product	octoprint
Published	Aug 21, 2026

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Affected Versions

OctoPrint / OctoPrint

< 1.11.8 >= 2.0.0rc1, < 2.0.0rc3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-p6qx-ghxm-389h github.com: https://github.com/OctoPrint/OctoPrint/commit/42e0f9863935e136f04ed3c560cb96483a580d1b github.com: https://github.com/OctoPrint/OctoPrint/commit/6e3db9096f8a94f7c2249be24b6d03a7d9c12bc7 github.com: https://github.com/OctoPrint/OctoPrint/releases/tag/1.11.8 github.com: https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc3