CVE-2026-90770 Details
Description
Spug through 3.4.0 contains a remote code execution vulnerability in the ping_check function that interpolates user-supplied monitor addresses directly into shell commands without validation. Authenticated users with monitor permissions can inject shell metacharacters via the /monitor/run_test/ endpoint to execute arbitrary commands as the Spug process user.
A remote code execution vulnerability has been identified in Spug versions through 3.4.0. The issue arises in the ping_check function, which directly interpolates user-supplied monitor addresses into shell commands without proper validation. This vulnerability can be exploited by authenticated users with monitor permissions through the /monitor/run_test/ endpoint, allowing them to execute arbitrary commands as the Spug process user.
Users are advised to upgrade to Spug version 4.0.0 or later, where this vulnerability has been fixed. For those unable to upgrade, the patch is available on the Spug GitHub repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 13, 2026CISA-ADP
Assessed Sep 18, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/openspug/spug | [email protected] | ProductVendor |
| https://github.com/openspug/spug/blob/v3.4.0/spug_api/apps/monitor/executors.py | [email protected] | Source CodeVendor |
| https://github.com/openspug/spug/blob/v3.4.0/spug_api/apps/monitor/views.py | [email protected] | Source CodeVendor |
| https://github.com/openspug/spug/commit/97aebf133e1f9cbb35ccebadab1faedfdfe93f42 | [email protected] | Source CodeVendor |
| https://github.com/openspug/spug/issues/741 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/spug-through-3.4.0-remote-code-execution-via-ping-check | [email protected] | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| OpenSpug Spug | <= 3.4.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 18, 2026 | CVE Modified | CISA-ADP |
| Sep 13, 2026 | New CVE Received | [email protected] |