{"id":"CVE-2020-1964","aliases":["GHSA-hjgm-f7vx-m5g7"],"url":"https://o3.security/vulnerability/CVE-2020-1964","summary":"Deserialization of Untrusted Data in Apache Heron","details":"It was noticed that Apache Heron 0.20.2-incubating, Release 0.20.1-incubating, and Release v-0.20.0-incubating does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerabilities (CWE-502: Deserialization of Untrusted Data).","published":"2020-04-16T19:15:28.290Z","modified":"2026-07-08T20:30:52.692407Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.04815,"percentile":0.91315,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.heron:heron-simulator","fixedVersion":"0.20.3-incubating"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/rd43ae18588fd7bdb375be63bc95a651aab319ced6306759e1237ce67%40%3Cdev.ignite.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re7b43cf8333ee30b6589e465f72a6ed4a082222612d1a0fdd30beb94%40%3Cdev.ignite.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re7b43cf8333ee30b6589e465f72a6ed4a082222612d1a0fdd30beb94%40%3Cuser.ignite.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rf032a13a4711f88c0a2c0734eecbee1026cc1b6cde27d16a653f8755%40%3Cdev.ignite.apache.org%3E"},{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/r16dd39f4180e4443ef4ca774a3a5a3d7ac69f91812c183ed2a99e959%40%3Cdev.heron.apache.org%3E"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:30:52.692407Z"}}