このページは Ubuntu 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。
CVE-2026-81723 の詳細 →
UBUNTU-CVE-2026-81723
NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView._read_xml_fragment() that rescans accumulated XML fragme...
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
NLTK versions before 3.10.3 contain a quadratic CPU exhaustion vulnerability in XMLCorpusView._read_xml_fragment() that rescans accumulated XML fragments on every 1 KiB block read. Attackers can provide malformed XML corpus files to cause severe CPU consumption and denial of service through affected readers like BNCCorpusReader.
出典: OSV.dev (Open Source Vulnerabilities) OSV
影響パッケージ
Ubuntu:Pro:14.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:22.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:24.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:26.04:LTS
nltk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
参照URL
- report ubuntu.com
- report cve.org
- report github.com
- report vulncheck.com