CVE-2026-90770

HIGH 8.8

Spug through 3.4.0 Remote Code Execution via ping_check

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78
Vendor	openspug
Product	spug
Published	Sep 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

openspug / spug

0 ≤ 3.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 George Chen