{"action":"Upgrade org.apache.nifi:nifi to 1.12.0-RC1 or later.","affected":[{"fixed":"1.12.0-RC1","introduced":"1.0.0"}],"component":"org.apache.nifi:nifi","cve_ids":["CVE-2020-13940"],"ecosystem":"Maven","epss":0.01911,"exploited":false,"fixed_versions":["1.12.0-RC1"],"ghsa_id":"GHSA-q4xf-3pmq-3hw8","id":"tcs_01M5N98PD48K9G26H95DSCXD0K","modified_at":"2025-09-15T07:41:52.738881Z","published_at":"2022-01-06T20:41:00Z","references":["https://osv.dev/vulnerability/GHSA-q4xf-3pmq-3hw8","https://nvd.nist.gov/vuln/detail/CVE-2020-13940","https://github.com/apache/nifi/commit/7f0416ee8bdcee95e28409cc6fae9c1394c2a798","https://nifi.apache.org/security#CVE-2020-13940"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"GHSA-q4xf-3pmq-3hw8","url":"https://osv.dev/vulnerability/GHSA-q4xf-3pmq-3hw8"}],"summary":"Improper Restriction of XML External Entity Reference in Apache NiFi"}