# CVE-2026-35163

## Summary

- **CVE ID:** CVE-2026-35163
- **Severity:** MEDIUM
- **CVSS Score:** 4.6 (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)
- **CWE:** CWE-80
- **Published:** Aug 21, 2026
- **Last Modified:** Aug 21, 2026

## 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.

## Affected Products

- OctoPrint — OctoPrint (< 1.11.8)
- OctoPrint — OctoPrint (>= 2.0.0rc1, < 2.0.0rc3)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._