CVE-2026-71243
- Source
- https://cve.org/CVERecord?id=CVE-2026-71243
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71243.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-71243
- Published
- 2026-08-05T10:56:48.404Z
- Modified
- 2026-08-07T03:45:21.039994588Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- backmeup (npm): OS Command Injection via Backup Option Values
- Details
-
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. The only processing applied is path.normalize()/path.join(), which do not neutralize shell metacharacters (;, |, &, $(), backticks, newline). Any application that passes attacker-influenced values into these options (e.g. a user-chosen backup name) is vulnerable to arbitrary OS command execution on the backup host, or on the remote SSH target when one is configured.
- Database specific
{ "cna_assigner": "TuranSec", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71243.json", "cwe_ids": [ "CWE-78" ] }- References