{"cve":"CVE-2017-15703","nvd":{"published":"2018-01-25T21:29:00.207","modified":"2026-06-17T01:08:07.570","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","score":5.0},"cwes":["CWE-502"],"references":["https://nifi.apache.org/security.html#CVE-2017-15703","https://nifi.apache.org/security.html#CVE-2017-15703"],"products":["apache:nifi"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2017-15703","score":0.00862,"percentile":0.58576,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xwx6-vmj4-5rv8","url":"https://osv.dev/vulnerability/GHSA-xwx6-vmj4-5rv8","summary":"Denial of service via deserialization attack in nifi","modified":"2023-11-08T03:58:58.180714Z","packages":[{"ecosystem":"Maven","name":"org.apache.nifi:nifi-framework-cluster-protocol","purl":"pkg:maven/org.apache.nifi/nifi-framework-cluster-protocol","ranges":["<1.5.0"],"fixed":["1.5.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}