{"vulnerability": "CVE-2026-63310", "sightings": [{"uuid": "7037ccaa-23a4-4f8f-8e70-ba01d391a11d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mtomcl6cs52p", "content": "CVE-2026-63310 - nltk\nIf you use the Natural Language Toolkit (NLTK) version earlier than 3.9.3, the software does not check that downloaded language data files are genuine before unpacking them. This means an attacker\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#nltk #CVE #infosec", "creation_timestamp": "2026-08-22T15:40:04.572945Z"}, {"uuid": "7df68f8e-c61d-4600-afe2-5bd52a824acb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://bsky.app/profile/stemshop.bsky.social/post/3mtont55gq22e", "content": "\ud83d\udea8 CVE-2026-63310 \u2014 CVSS 9.3 CRITICAL\n\nNLTK before 3.9.3 fails to verify file integrity after downloading packages and before extraction in the do...\n\n\ud83d\udd0e https://stemshop.top/cve/CVE-2026-63310\n\n#CVE #CyberSecurity #InfoSec", "creation_timestamp": "2026-08-22T16:07:13.792283Z"}, {"uuid": "e6e140cd-4961-49cf-8068-1139bac6515e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/117142940889855260", "content": "CVE-2026-63310: NLTK <3.9.3 has a CRITICAL flaw where package integrity isn't checked post-download in the downloader module. Exposes users to MITM & DNS poisoning attacks. Upgrade to 3.9.3+ or avoid insecure networks. https://radar.offseq.com/threat/nltk-before-393-fails-to-verify-file-integrity-after-downloading-packages-and-before-extraction-in-the-f6492d4a6dda17c2 #OffSeq #NLTK #CVE202663310 #infosec", "creation_timestamp": "2026-08-23T04:30:27.123274Z"}, {"uuid": "5a99530f-2f4b-4d5f-962c-0617f3f5e7bc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mtpyz2zwvq2t", "content": "CVE-2026-63310\nIf you use the Natural Language Toolkit version earlier than 3.9.3, the tool does not check that downloaded language data files are genuine before unpacking them. This means an attacker who can intercept or\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#CVE #infosec", "creation_timestamp": "2026-08-23T05:00:04.358574Z"}, {"uuid": "82e9c7d9-3333-4143-8ccc-a9a00986eb96", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://bsky.app/profile/hugovalters.bsky.social/post/3mtt634mhzm2o", "content": "CVE-2026-63310 - MITM package injection flaw in NLTK downloader module. CVSS 7.1. Update NLTK to 3.9.3+ immediately. #CVE #Python #infosec\n\nhttps://www.valtersit.com/cve/CVE-2026-63310/", "creation_timestamp": "2026-08-24T11:08:40.751229Z"}, {"uuid": "f8e2068f-787a-4b27-a885-07df027c5e18", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-63310", "type": "seen", "source": "https://mastodon.social/users/hugovalters/statuses/117150169219152410", "content": "CVE-2026-63310 - MITM package injection flaw in NLTK downloader module. CVSS 7.1. Update NLTK to 3.9.3+ immediately. #CVE #Python #infosec\nhttps://www.valtersit.com/cve/CVE-2026-63310/", "creation_timestamp": "2026-08-24T11:08:41.903378Z"}]}