Most recent entries from all https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 08 Oct 2026 23:30:59 +0000 CVE-2026-66393 — NLTK before 3.9.4 Denial of Service via JSONTaggedDecoder https://cve.radiocsirt.org/vuln/cve-2026-66393 <p><strong>Affected:</strong> nltk</p> <p>NLTK versions before 3.9.4 contain an unbounded recursion vulnerability in JSONTaggedDecoder.decode_obj() that allows attackers to cause denial of service by supplying deeply nested JSON structures. Attackers can craft JSON payloads exceeding the recursion limit to trigger an unhandled RecursionError that crashes the Python process.</p> <p><strong>Affected:</strong> nltk</p> <p>NLTK versions before 3.9.4 contain an unbounded recursion vulnerability in JSONTaggedDecoder.decode_obj() that allows attackers to cause denial of service by supplying deeply nested JSON structures. Attackers can craft JSON payloads exceeding the recursion limit to trigger an unhandled RecursionError that crashes the Python process.</p> https://cve.radiocsirt.org/vuln/cve-2026-66393