USN-8302-1: NLTK vulnerabilities

USN-8302-1: NLTK vulnerabilities

https://ubuntu.com/security/notices/rss.xml / Tue, 05/26/2026 - 02:25
It was discovered that NLTK incorrectly validated file paths when opening files using the nltk.util module. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-0846) It was discovered that NLTK incorrectly validated file paths in multiple CorpusReader classes. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-0847) It was discovered that NLTK did not properly validate external Java archive files loaded by StanfordSegmenter. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-0848) It was discovered that NLTK's WordNet browser application incorrectly handled user-supplied input. An attacker could possibly use this issue to perform a cross-site scripting attack. (CVE-2026-33230) It was discovered that NLTK's WordNet browser application did not restrict access to the shutdown endpoint. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-33231) It was discovered that NLTK's downloader did not validate path attributes in remote XML index files. An attacker could possibly use this issue to create or overwrite arbitrary files. (CVE-2026-33236)

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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.