CVE-2026-90770 Spug - Remote Code Execution

Spug 3.4.0 contains a remote code execution caused by unsanitized user input in the ping_check function, letting authenticated users with monitor permissions execute arbitrary commands via /monitor/run_test/ endpoint.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
13 September 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to the latest version of Spug.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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