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    CVE-2020-1956

    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.

    Published:May 22, 2020
    Last Modified:Oct 23, 2025
    EPS:May 22, 2020
    EPSS Score:0.93559
    CVSS Score:8.8

    CISA Notification

    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.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Apr 15, 2022
    1610 days ago
    Alert Date
    Mar 25, 2022
    1631 days ago

    Affected Products

    Vendor
    Apache
    Product
    Kylin

    Exploits

    https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706https://github.com/b510/CVE-2020-1956

    Related CVEs

    CVE-2026-62393 (CVSS 4.3) — Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kylin. Improper authorizat…
    CVE-2026-62392 (CVSS 9.8) — Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Ap…
    CVE-2025-61735 (CVSS 7.3) — Server-Side Request Forgery (SSRF) vulnerability in Apache Kylin. This issue affects Apache Kylin: from 4.0.0…
    CVE-2025-61733 (CVSS 7.5) — Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Kylin. This issue affects Ap…
    CVE-2025-61734 (CVSS 7.5) — Files or Directories Accessible to External Parties vulnerability in Apache Kylin. You are fine as long as th…
    CVE-2025-30067 (CVSS 7.2) — Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Kylin. If an attacker gets …
    CVE-2024-48944 (CVSS 6.5) — Server-Side Request Forgery (SSRF) vulnerability in Apache Kylin. Through a kylin server, an attacker may forg…
    CVE-2024-23590 (CVSS 9.1) — Session Fixation vulnerability in Apache Kylin. This issue affects Apache Kylin: from 2.0.0 through 4.x. Use…
    CVE-2023-29055 (CVSS 7.5) — In Apache Kylin version 2.0.0 to 4.0.3, there is a Server Config web interface that displays the content of fi…
    CVE-2022-44621 (CVSS 9.8) — Diagnosis Controller miss parameter validation, so user may attacked by command injection via HTTP Request.…

    References

    http://www.openwall.com/lists/oss-security/2020/07/14/1
    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/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%40%3Cuser.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cannounce.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cdev.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cuser.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%40%3Ccommits.kylin.apache.org%3E
    http://www.openwall.com/lists/oss-security/2020/07/14/1
    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/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%40%3Cuser.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cannounce.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cdev.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cuser.kylin.apache.org%3E
    https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%40%3Ccommits.kylin.apache.org%3E
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1956

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High