{"id":"CVE-2017-15703","details":"Any authenticated user (valid client certificate but without ACL permissions) could upload a template which contained malicious code and caused a denial of service via Java deserialization attack. The fix to properly handle Java deserialization was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.","aliases":["GHSA-xwx6-vmj4-5rv8"],"modified":"2026-07-08T11:49:17.593748Z","published":"2018-01-25T21:29:00.207Z","references":[{"type":"ADVISORY","url":"https://nifi.apache.org/security.html#CVE-2017-15703"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/nifi","events":[{"introduced":"74d5224783dfdc513f6b3ad5ed96671d3c581707"},{"last_affected":"e6508ba7d3da5bba54abd6233a7a8f9dd4c32151"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.0"},{"last_affected":"1.4.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-15703.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"}]}