{"id":"CVE-2020-17534","aliases":["GHSA-ppc3-fpvh-7396"],"url":"https://o3.security/vulnerability/CVE-2020-17534","summary":"Improper synchronization in Apache Netbeans HTML/Java API","details":"There exists a race condition between the deletion of the temporary file and the creation of the temporary directory in `webkit` subproject of HTML/Java API version 1.7. A similar vulnerability has recently been disclosed in other Java projects and the fix in HTML/Java API version 1.7.1 follows theirs: To avoid local privilege escalation version 1.7.1 creates the temporary directory atomically without dealing with the temporary file: https://github.com/apache/netbeans-html4j/commit/fa70e507e5555e1adb4f6518479fc408a7abd0e6","published":"2021-01-11T16:15:14.867Z","modified":"2026-07-08T20:28:54.186071Z","cvss":{"score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.netbeans.html:pom","fixedVersion":"1.7.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/ra6119c0cdfccf051a846fa11b61364f5df9e7db93c310706a947f86a%40%3Cdev.netbeans.apache.org%3E"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:28:54.186071Z"}}