# CVE-2020-1956: Apache Kylin OS Command Injection Vulnerability

> CVE-2020-1956: Apache Kylin OS Command Injection Vulnerability. CVSS 8.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2020-1956
Last updated: 2025-10-21T23:35:43Z

- Published: 2020-05-22 13:27 UTC · Updated: 2025-10-21 23:35 UTC · Assigner: apache
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 97.4%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-25, federal due date 2022-04-15, ransomware use: Unknown

## Description

Apache Kylin 2.3.0, and releases up to 2.6.5 and 3.0.1 has some restful apis which will concatenate os command with the user input string, a user is likely to be able to execute any os command without any protection or validation.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Apache: Kylin

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2020-1956)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2020-1956)
- [https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706](https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706)
- [https://lists.apache.org/thread.html/r021baf9d8d4ae41e8c8332c167c4fa96c91b5086563d9be55d2d7acf%40%3Ccommits.kylin.apache.org%3E](https://lists.apache.org/thread.html/r021baf9d8d4ae41e8c8332c167c4fa96c91b5086563d9be55d2d7acf%2540%3Ccommits.kylin.apache.org%3E)
- [https://lists.apache.org/thread.html/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%40%3Cuser.kylin.apache.org%3E](https://lists.apache.org/thread.html/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%2540%3Cuser.kylin.apache.org%3E)
- [https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cannounce.apache.org%3E](https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%2540%3Cannounce.apache.org%3E)
- [https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cdev.kylin.apache.org%3E](https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%2540%3Cdev.kylin.apache.org%3E)
- [https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cuser.kylin.apache.org%3E](https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%2540%3Cuser.kylin.apache.org%3E)
- [https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%40%3Ccommits.kylin.apache.org%3E](https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%2540%3Ccommits.kylin.apache.org%3E)
- [http://www.openwall.com/lists/oss-security/2020/07/14/1](http://www.openwall.com/lists/oss-security/2020/07/14/1)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2020-1956 · Markdown: https://rewindex.com/cve/CVE-2020-1956.md · JSON: https://rewindex.com/api/v1/cves/CVE-2020-1956 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:10:04.772Z