{"id":"CVE-2021-26544","aliases":["GHSA-74qp-233x-p5j8"],"url":"https://o3.security/vulnerability/CVE-2021-26544","summary":"Apache Livy Cross-site scripting (XSS) in session names","details":"Livy server version 0.7.0-incubating (only) is vulnerable to a cross site scripting issue in the session name. A malicious user could use this flaw to access logs and results of other users' sessions and run jobs with their privileges. This issue is fixed in Livy 0.7.1-incubating.","published":"2021-02-20T09:15:12.377Z","modified":"2026-08-27T08:40:33.100985Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.livy:livy-server","fixedVersion":"0.7.1-incubating"}],"fix":{"url":"https://github.com/apache/incubator-livy/commit/4d8a912699683b973eee76d4e91447d769a0cb0d","label":"apache/incubator-livy@4d8a912"},"references":[{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2021/02/20/1"},{"type":"FIX","url":"https://github.com/apache/incubator-livy/commit/4d8a912699683b973eee76d4e91447d769a0cb0d"},{"type":"FIX","url":"https://lists.apache.org/thread.html/r2db14e7fd1e5ec2519e8828d43529bad623d75698cc7918af3a3f3ed%40%3Cuser.livy.apache.org%3E"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26544"},{"type":"WEB","url":"https://github.com/apache/incubator-livy/commit/9f1ba47a2f0d8accc435b133b42c3a76aa9ac846"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T08:40:33.100985Z"}}