Answer in brief
CVE-2026-35163 records a Medium severity vulnerability in OctoPrint: XSS in Suppressed Command Notifications. The current sources do not mark it as known exploited. The current feed maps OctoPrint/OctoPrint (generic), OctoPrint (pip), OctoPrint (pip). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps OctoPrint/OctoPrint (generic), OctoPrint (pip), OctoPrint (pip). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| OctoPrint/OctoPrintgeneric | < 1.11.8 || >= 2.0.0rc1, < 2.0.0rc3 | Not reported |
| OctoPrintpip | <=1.11.7 | 1.11.8 |
| OctoPrintpip | >=2.0.0rc1,<=2.0.0rc2 | 2.0.0rc3 |
Published upstream
Aug 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 23, 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.
Quoted source text, attributed separately from HOL analysis.