{"cve":"CVE-2025-34073","nvd":{"published":"2025-07-02T14:15:24.967","modified":"2026-06-17T09:13:25.537","status":"Deferred","description":"An unauthenticated command injection vulnerability exists in stamparm/maltrail (Maltrail) versions <=0.54. A remote attacker can execute arbitrary operating system commands via the username parameter in a POST request to the /login endpoint. This occurs due to unsafe handling of user-supplied input passed to subprocess.check_output() in core/http.py, allowing injection of shell metacharacters. Exploitation does not require authentication and commands are executed with the privileges of the Maltrail process.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":10.0},"cvss_v3":null,"cwes":["CWE-78","CWE-306"],"references":["https://github.com/stamparm/maltrail","https://github.com/stamparm/maltrail/issues/19146","https://huntr.com/bounties/be3c5204-fbd9-448d-b97c-96a8d2941e87","https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/http/maltrail_rce.rb","https://vulncheck.com/advisories/stamparm-maltrail-rce"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:04:28.436527499+00:00"},"epss":{"cve":"CVE-2025-34073","score":0.05472,"percentile":0.92756,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}