RCE in Openspug Spug
CVE-2026-108540
A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1. This impacts an unknown function of the file /exec/transfer of the component File Transfer. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Openspug Spug — versions 3.0, 3.1, 3.2
Weakness classification (CWE)
References
- vuldb.com/vuln/416195 (vdb-entry)
- vuldb.com/vuln/416195/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108540 (third-party-advisory)
- vuldb.com/submit/948328 (third-party-advisory)
- github.com/SECWG/CVE/issues/10 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-108540?
- CVE-2026-108540 is a critical-severity vulnerability in Openspug Spug, classified under Command Injection. CVSS score: 9.9/10. Published 2026-10-11.
- How severe is CVE-2026-108540?
- Critical severity. CVSS v3 base score is 9.9 out of 10.