CVE-2026-71243
backmeup (npm) - OS Command Injection via Backup Option Values
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
The backmeup npm package assembles shell command strings by directly concatenating its option values (name, source, destination, filter) - e.g. cmd = "mkdir -p " + path.join(info.destination, info.name) + "; " - and executes the resulting string through a shell via ssh2-exec (locally via child_process, or remotely via SSH when an ssh handle is supplied), rather than using execFile/spawn with an argument array.
| CWE | CWE-78 |
| Vendor | adaltas |
| Product | backmeup |
| Published | Aug 5, 2026 |
| Last Updated | Aug 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
adaltas / backmeup
0 ≤ 0.0.2
Credits
Timur Juraev