What is CVE-2026-56004?

CVE-2026-56004 is a critical-severity vulnerability in openSUSE Buildservice, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-07-02.

How severe is CVE-2026-56004?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in openSUSE Buildservice

CVE-2026-56004

A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by attackers able to provide a _service file to execute code as the source service or the local user checking out the malicious services

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.004 (30.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Opensuse Buildservice — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

meissner@suse.de (patch)

Frequently asked questions

What is CVE-2026-56004?: CVE-2026-56004 is a critical-severity vulnerability in openSUSE Buildservice, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-07-02.
How severe is CVE-2026-56004?: Critical severity. CVSS v3 base score is 10.0 out of 10.