{"id":"CLEANSTART-2026-HB03857","summary":"DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator","details":"Security vulnerability affects the apache-zookeeper package. DefaultBaseTypeLimitingValidator is the PolymorphicTypeValidator applied automatically whenever @JsonTypeInfo is used without an explicitly configured custom validator.","modified":"2026-10-17T00:45:03.445453394Z","published":"2026-10-17T00:37:25.207905Z","upstream":["CVE-2026-83557"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-HB03857.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-83557"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83557"}],"affected":[{"package":{"name":"apache-zookeeper","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/apache-zookeeper?arch=noarch"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.6-r7"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-HB03857.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}