{"id":"CVE-2026-47898","aliases":["EUVD-2026-41517","GHSA-m739-f9cm-66x2"],"status":"published","title":"Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","severity":{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00468,"percentile":0.40861,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-611"],"published":"2026-07-03T07:47:38Z","modified":"2026-10-28T02:30:43Z","products":[{"vendor":"apache","product":"lucene.net"},{"vendor":"apache software foundation","product":"apache lucene.net"}],"references":[{"url":"https://lists.apache.org/thread/7yn9k6sbbsk18yco5y2hszpcf8dst489","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/07/03/3","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47898","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-m739-f9cm-66x2"},{"url":"https://www.nuget.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47898.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-47898","title":"Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","status":"published","published":"2026-07-03T07:47:38.904Z","modified":"2026-07-06T17:32:25.185Z","cvss":[{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T13:36:29.327819Z"}],"euvd":[{"id":"EUVD-2026-41517","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","status":"published","published":"2026-07-03T07:47:38Z","modified":"2026-07-06T17:32:25Z","cvss":[{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:12.791563Z"}],"ghsa":[{"id":"GHSA-m739-f9cm-66x2","title":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene...","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","status":"published","published":"2026-07-03T09:31:28Z","modified":"2026-07-08T18:32:34Z","cvss":[{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T15:09:20.268554Z"}],"nvd":[{"id":"CVE-2026-47898","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","status":"published","published":"2026-07-03T08:16:24.977Z","modified":"2026-10-25T21:10:00.77Z","cvss":[{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:12:27.541515Z"}],"osv":[{"id":"CVE-2026-47898","title":"Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser","description":"Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library).\n\nThis issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018.\n\nUsers are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.","status":"published","published":"2026-07-03T07:47:38.904Z","modified":"2026-10-28T02:30:43.260642808Z","cvss":[{"version":"4.0","score":4,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N","level":"medium"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T15:45:06.701612Z"}]}}