{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-126296","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-10T20:15:54.612Z","datePublished":"2026-11-13T09:36:28.517Z","dateUpdated":"2026-11-13T09:36:28.517Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-13T09:36:28.517Z"},"datePublic":"2026-10-26T00:00:00.000Z","title":"NLTK before 3.10.4 Path Traversal via save_maxent_params and load_maxent_params","descriptions":[{"lang":"en","value":"NLTK before 3.10.4 contains a path traversal vulnerability in save_maxent_params() and load_maxent_params() that bypasses the pathsec filesystem restriction mechanism. Attackers who control the tab_dir argument can read or overwrite model parameter files outside permitted data roots, because the functions call Python's built-in open() directly."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"External Control of File Name or Path","cweId":"CWE-73","type":"CWE"}]}],"affected":[{"vendor":"nltk","product":"nltk","defaultStatus":"unaffected","packageURL":"pkg:pypi/nltk","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.10.4"},{"version":"3.10.4","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*","versionEndExcluding":"3.10.4"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseScore":4.8,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/nltk/nltk/security/advisories/GHSA-59f9-gqg8-mqpj","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-59f9-gqg8-mqpj)"},{"name":"VulnCheck Advisory: NLTK before 3.10.4 Path Traversal via save_maxent_params and load_maxent_params","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/nltk-before-3.10.4-path-traversal-via-save-maxent-params-and-load-maxent-params"}],"credits":[{"lang":"en","value":"F0DH1L","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}