Staging Environment: Content and features may be unstable or change without notice.
Advisory details: vulnrichment / CVE-2026-35163
Advisory ID vulnrichment/CVE-2026-35163
Aliases
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
System Score Found at
cvssv4 4.6
ssvc Track
Reference id Reference type URL
https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-p6qx-ghxm-389h
1.11.8 Other https://github.com/OctoPrint/OctoPrint/releases/tag/1.11.8
2.0.0rc3 Other https://github.com/OctoPrint/OctoPrint/releases/tag/2.0.0rc3
42e0f9863935e136f04ed3c560cb96483a580d1b Other https://github.com/OctoPrint/OctoPrint/commit/42e0f9863935e136f04ed3c560cb96483a580d1b
6e3db9096f8a94f7c2249be24b6d03a7d9c12bc7 Other https://github.com/OctoPrint/OctoPrint/commit/6e3db9096f8a94f7c2249be24b6d03a7d9c12bc7
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
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 Found at None
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-08-21T19:53:45Z/ Found at None

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-08-21T19:53:45Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/35xxx/CVE-2026-35163.json

Source Advisory: vulnrichment/CVE-2026-35163

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]