Vulnerability record · CVE-2026-90770 · published 13 September 2026

CVE-2026-90770: OS command injection vulnerability

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.

8.7 CVSS 4.0 High EPSS 1.3% · top 30.3% CWE-78 · OS command injection Deferred

8.7CVSS 4.0 base score

1.3%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

6References

23 Sep 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/openspug/spug
https://github.com/openspug/spug/blob/v3.4.0/spug_api/apps/monitor/executors.py
https://github.com/openspug/spug/blob/v3.4.0/spug_api/apps/monitor/views.py
https://github.com/openspug/spug/commit/97aebf133e1f9cbb35ccebadab1faedfdfe93f42
https://github.com/openspug/spug/issues/741
https://www.vulncheck.com/advisories/spug-through-3.4.0-remote-code-execution-via-ping-check

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Source: NIST National Vulnerability Database (record CVE-2026-90770), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.