{"id":"CVE-2021-44557","aliases":["EUVD-2021-31384","GHSA-h7pc-9m8f-584g"],"status":"published","title":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is...","description":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01304,"percentile":0.70717,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-611"],"published":"2021-12-08T11:21:10Z","modified":"2026-06-17T04:12:33Z","products":[{"vendor":"kb","product":"multiner"}],"references":[{"url":"https://github.com/KBNLresearch/multiNER","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory"]},{"url":"https://github.com/KBNLresearch/multiNER/pull/3","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44557"},{"url":"https://github.com/advisories/GHSA-h7pc-9m8f-584g"}],"sources":{"cve":[{"id":"CVE-2021-44557","description":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.","status":"published","published":"2021-12-08T11:21:10Z","modified":"2024-08-04T04:25:16.855Z","updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2021-31384","description":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.","status":"published","published":"2021-12-08T11:21:10Z","modified":"2024-08-04T04:25:16Z","updated_at":"2026-11-03T03:08:29.150764Z"}],"ghsa":[{"id":"GHSA-h7pc-9m8f-584g","title":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is...","description":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.","status":"published","published":"2021-12-09T00:01:03Z","modified":"2023-02-01T05:06:43Z","cwes":["CWE-611"],"updated_at":"2026-11-02T14:50:24.546925Z"}],"nvd":[{"id":"CVE-2021-44557","description":"National Library of the Netherlands multiNER \u003c= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.","status":"published","published":"2021-12-08T12:15:08.023Z","modified":"2026-06-17T04:12:33.76Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}