{"id":"CVE-2020-13940","aliases":["BIT-nifi-2020-13940","EUVD-2022-0671","GHSA-q4xf-3pmq-3hw8","openSUSE-SU-2024:13324-1"],"status":"published","title":"Improper Restriction of XML External Entity Reference in Apache NiFi","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01911,"percentile":0.80091,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-611"],"published":"2020-10-01T19:55:16Z","modified":"2026-10-24T10:30:44Z","fixes":[{"ecosystem":"Maven","package":"org.apache.nifi:nifi","fixed_in":["1.12.0-RC1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.nifi:nifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"last_affected":"1.11.4"},{"fixed":"1.12.0-RC1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"nifi","ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"last_affected":"1.11.4"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.nifi:nifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"fixed":"1.12.0-RC1"}]}],"versions":["1.0.0","1.0.1","1.1.0","1.1.1","1.1.2","1.10.0","1.11.0","1.11.1","1.11.2","1.11.3","1.11.4","1.2.0","1.3.0","1.4.0","1.5.0","1.6.0","1.7.0","1.7.1","1.8.0","1.9.0","1.9.1","1.9.2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tuxguitar","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.0-2.1"}]}],"bundled":2}],"products":[{"vendor":"apache","product":"nifi"},{"vendor":"apache software foundation","product":"apache nifi"}],"references":[{"url":"https://nifi.apache.org/security#CVE-2020-13940","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13940","tags":["web","advisory"]},{"url":"https://github.com/apache/nifi/commit/7f0416ee8bdcee95e28409cc6fae9c1394c2a798","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q4xf-3pmq-3hw8"},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2020-13940","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-14940","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2020-13940","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2020-10-01T19:55:16Z","modified":"2024-08-04T12:32:14.454Z","updated_at":"2026-11-02T14:35:54.170199Z"}],"euvd":[{"id":"EUVD-2022-0671","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2020-10-01T19:55:16Z","modified":"2024-08-04T12:32:14Z","updated_at":"2026-11-03T03:07:35.099081Z"}],"ghsa":[{"id":"GHSA-q4xf-3pmq-3hw8","title":"Improper Restriction of XML External Entity Reference in Apache NiFi","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2022-01-06T20:41:00Z","modified":"2023-02-01T05:05:15Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:36:33.613868Z"}],"nvd":[{"id":"CVE-2020-13940","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2020-10-01T20:15:13.097Z","modified":"2026-06-17T02:53:56.643Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:06:17.70091Z"}],"osv":[{"id":"CVE-2020-13940","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2020-10-01T20:15:13.097Z","modified":"2026-10-24T10:30:44.53478954Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:14.418339Z"},{"id":"GHSA-q4xf-3pmq-3hw8","title":"Improper Restriction of XML External Entity Reference in Apache NiFi","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2022-01-06T20:41:00Z","modified":"2025-09-15T07:41:52.738881Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T15:46:54.055966Z"},{"id":"BIT-nifi-2020-13940","description":"In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).","status":"published","published":"2025-09-12T11:46:34.845Z","modified":"2026-09-08T08:48:16.946309574Z","updated_at":"2026-11-02T15:28:34.007508Z"},{"id":"openSUSE-SU-2024:13324-1","title":"tuxguitar-1.6.0-2.1 on GA media","description":"These are all security issues fixed in the tuxguitar-1.6.0-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:00:49.958611Z","updated_at":"2026-11-02T16:58:36.025801Z"}]}}