{"cve":"CVE-2021-45456","nvd":{"published":"2022-01-06T13:15:08.227","modified":"2026-06-17T04:13:24.063","status":"Modified","description":"Apache kylin checks the legitimacy of the project before executing some commands with the project name passed in by the user. There is a mismatch between what is being checked and what is being used as the shell command argument in DiagnosisService. This may cause an illegal project name to pass the check and perform the following steps, resulting in a command injection vulnerability. This issue affects Apache Kylin 4.0.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-77"],"references":["http://www.openwall.com/lists/oss-security/2022/01/06/1","https://lists.apache.org/thread/70fkf9w1swt2cqdcz13rwfjvblw1fcpf","http://www.openwall.com/lists/oss-security/2022/01/06/1","https://lists.apache.org/thread/70fkf9w1swt2cqdcz13rwfjvblw1fcpf"],"products":["apache:kylin"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-45456","score":0.88887,"percentile":0.99777,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hw3m-8h25-8frw","url":"https://osv.dev/vulnerability/GHSA-hw3m-8h25-8frw","summary":"Command Injection in Apache Kylin","modified":"2024-12-04T05:35:38.514924Z","packages":[{"ecosystem":"Maven","name":"org.apache.kylin:kylin","purl":"pkg:maven/org.apache.kylin/kylin","ranges":["<4.0.1"],"fixed":["4.0.1"]}]}],"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."]}