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2.4 KiB
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1 line
2.4 KiB
JSON
{"schema_version":"1.9.0","id":"GHSA-jx89-3qg8-p2mr","published":"2026-08-25T03:32:11Z","modified":"2026-09-02T15:00:09.006166422Z","withdrawn":"2026-09-02T14:39:54Z","summary":"Duplicate Advisory: Entity-expansion DoS (billion laughs) via remaining raw ElementTree parses (CWE-776)","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-97qj-x29f-37w7. This link is maintained to preserve external references.\n\n## Original Description\n\nNLTK versions before 3.10.3 use xml.etree.ElementTree to parse XML in multiple modules, which honors entity declarations in document DTDs. Attackers can craft XML payloads with nested entity declarations that expand from hundreds of bytes to megabytes in memory, causing denial of service.","affected":[{"package":{"name":"nltk","ecosystem":"PyPI","purl":"pkg:pypi/nltk"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.10.2"}]}],"versions":["0.8","0.9","0.9.3","0.9.4","0.9.5","0.9.6","0.9.7","0.9.8","0.9.9","2.0.1","2.0.1rc1","2.0.1rc2-git","2.0.1rc3","2.0.1rc4","2.0.2","2.0.3","2.0.4","2.0.5","2.0b4","2.0b5","2.0b6","2.0b7","2.0b8","2.0b9","3.0.0","3.0.0b1","3.0.0b2","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5","3.1","3.10.0","3.10.1","3.10.2","3.2","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.3","3.4","3.4.1","3.4.2","3.4.3","3.4.4","3.4.5","3.5","3.5b1","3.6","3.6.1","3.6.2","3.6.3","3.6.4","3.6.5","3.6.6","3.6.7","3.7","3.8","3.8.1","3.9","3.9.1","3.9.2","3.9.3","3.9.4","3.9b1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-jx89-3qg8-p2mr/GHSA-jx89-3qg8-p2mr.json"}}],"references":[{"type":"WEB","url":"https://github.com/nltk/nltk/security/advisories/GHSA-97qj-x29f-37w7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78681"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/nltk-before-entity-expansion-dos-via-elementtree"}],"database_specific":{"cwe_ids":["CWE-776"],"github_reviewed":true,"github_reviewed_at":"2026-09-02T14:39:54Z","nvd_published_at":"2026-08-25T02:16:52Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/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"}]} |