CVE-2026-56004CWE-78

obs-service-tar_scm: command injection via mercurial handler

Critical · published July 2, 2026

CVSS v3.1
10.0
EPSS
1%
Percentile
51.0
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00661 · 51.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-07-02T14:54Z
EPSS history
Timeline
  • 02 JUL 14:54Z
    obs-service-tar_scm: command injection via mercurial handler
    cvelistv5