CVE-2026-56004 PUBLISHED

obs-service-tar_scm: command injection via mercurial handler

Assigner: suse
Reserved: 18.06.2026 Published: 02.07.2026 Updated: 02.07.2026

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

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 10

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	openSUSE
Product	buildservice
Versions	Default: unaffected affected from 0 to 0.12.4 (excl.)

Credits

Maxime Rinaudo of Fenrisk (www.fenrisk.com <http://www.fenrisk.com>) finder

References

https://github.com/openSUSE/obs-service-tar_scm/pull/552/changes/bcf29d318c671c45fe87dd9f995a4a0c78ecedd7

Problem Types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') CWE

Impacts

CAPEC-242 Code Injection