{"id":"CVE-2022-39243","aliases":["GHSA-cxgf-v2p8-7ph7"],"url":"https://o3.security/vulnerability/CVE-2022-39243","summary":"NuProcess vulnerable to command-line injection through insertion of NUL character(s)","details":"### Impact\nIn all the versions of NuProcess where it forks processes by using the JVM's Java_java_lang_UNIXProcess_forkAndExec method (1.2.0+), attackers can use NUL characters in their strings to perform command line injection. Java's ProcessBuilder isn't vulnerable because of a check in ProcessBuilder.start. NuProcess is missing that check.\n\nThis vulnerability can only be exploited to inject command line arguments on Linux.\n- On macOS, any argument with a NUL character is truncated at that character. This means the malicious arguments are never seen by the started process.\n- On Windows, the entire command line is truncated at the first NUL character. This means the malicious arguments, and any intentional arguments provided after them, are never seen by the started process.\n\n### Patches\n2.0.5\n\n### Workarounds\nUsers of the library can sanitize command strings to remove NUL characters prior to passing them to NuProcess for execution.\n\n### References\nNone.\n","published":"2022-09-26T13:25:11Z","modified":"2026-08-12T03:51:34.266453319Z","cvss":{"score":8.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"com.zaxxer:nuprocess","fixedVersion":"2.0.5"}],"fix":{"url":"https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868","label":"brettwooldridge/NuProcess@29bc09d"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39243.json"},{"type":"ADVISORY","url":"https://github.com/brettwooldridge/NuProcess/security/advisories/GHSA-cxgf-v2p8-7ph7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39243"},{"type":"FIX","url":"https://github.com/brettwooldridge/NuProcess/commit/29bc09de561bf00ff9bf77123756363a9709f868"},{"type":"FIX","url":"https://github.com/brettwooldridge/NuProcess/pull/143"},{"type":"PACKAGE","url":"https://github.com/brettwooldridge/NuProcess"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:34.266453319Z"}}