{"id":"CVE-2021-44145","aliases":["BIT-nifi-2021-44145","EUVD-2022-0689","GHSA-rq96-qhc5-vm4r"],"status":"published","title":"Apache NiFi information disclosure by XXE","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01757,"percentile":0.78255,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2021-12-17T08:50:09Z","modified":"2026-10-24T10:30:15Z","fixes":[{"ecosystem":"Maven","package":"org.apache.nifi:nifi","fixed_in":["1.15.1"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"nifi","fixed_in":["1.15.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.nifi:nifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"nifi","ranges":[{"type":"SEMVER","events":[{"introduced":"0.1.0"},{"fixed":"1.15.1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.nifi:nifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.1"}]}],"versions":["0.0.1-incubating","0.0.2-incubating","0.1.0-incubating","0.2.0-incubating","0.2.1","0.3.0","0.4.0","0.4.1","0.5.0","0.5.1","0.6.0","0.6.1","0.7.0","0.7.1","0.7.2","0.7.3","0.7.4","1.0.0","1.0.0-BETA","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","1.12.0","1.12.1","1.13.0","1.13.1","1.13.2","1.14.0","1.15.0","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"]}],"products":[{"vendor":"apache","product":"nifi"},{"vendor":"apache software foundation","product":"apache nifi"}],"references":[{"url":"https://nifi.apache.org/security.html#1.15.1-vulnerabilities","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2021/12/17/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44145","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-rq96-qhc5-vm4r"}],"sources":{"cve":[{"id":"CVE-2021-44145","title":"Apache NiFi information disclosure by XXE","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2021-12-17T08:50:09Z","modified":"2024-08-04T04:17:24.439Z","updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2022-0689","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2021-12-17T08:50:09Z","modified":"2024-08-04T04:17:24Z","updated_at":"2026-11-03T03:24:12.005069Z"}],"ghsa":[{"id":"GHSA-rq96-qhc5-vm4r","title":"Exposure of Sensitive Information to an Unauthorized Actor in Apache NiFi","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2022-01-05T17:33:32Z","modified":"2023-02-03T05:02:30Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:36:41.967989Z"}],"nvd":[{"id":"CVE-2021-44145","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2021-12-17T09:15:07.117Z","modified":"2026-06-17T04:11:57.113Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:07:02.566991Z"}],"osv":[{"id":"CVE-2021-44145","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2021-12-17T09:15:07.117Z","modified":"2026-10-24T10:30:15.116809963Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:21.877444Z"},{"id":"GHSA-rq96-qhc5-vm4r","title":"Exposure of Sensitive Information to an Unauthorized Actor in Apache NiFi","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2022-01-05T17:33:32Z","modified":"2025-09-15T07:42:02.238708Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:56.281047Z"},{"id":"BIT-nifi-2021-44145","title":"Apache NiFi information disclosure by XXE","description":"In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.","status":"published","published":"2025-09-12T11:46:48.807Z","modified":"2026-09-08T08:48:17.020357012Z","updated_at":"2026-11-02T15:28:34.007508Z"}]}}