https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 09:26:06 +0000 https://vulnerability.circl.lu/vuln/cve-2021-3828 <p><strong>Affected:</strong> nltk/nltk</p> <p>nltk is vulnerable to Inefficient Regular Expression Complexity</p> <p><strong>Affected:</strong> nltk/nltk</p> <p>nltk is vulnerable to Inefficient Regular Expression Complexity</p> https://vulnerability.circl.lu/vuln/cve-2021-3828 https://vulnerability.circl.lu/vuln/ghsa-2ww3-fxvq-293j <p><strong>Affected:</strong> PyPI: nltk</p> <p>The nltk package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide as an input to the [`_read_comparison_block()`(https://github.com/nltk/nltk/blob/23f4b1c4b4006b0cb3ec278e801029557cec4e82/nltk/corpus/reader/comparative_sents.py#L259) function in the file `nltk/corpus/reader/comparative_sents.py` may cause an application to consume an excessive amount of CPU.</p> <p><strong>Affected:</strong> PyPI: nltk</p> <p>The nltk package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide as an input to the [`_read_comparison_block()`(https://github.com/nltk/nltk/blob/23f4b1c4b4006b0cb3ec278e801029557cec4e82/nltk/corpus/reader/comparative_sents.py#L259) function in the file `nltk/corpus/reader/comparative_sents.py` may cause an application to consume an excessive amount of CPU.</p> https://vulnerability.circl.lu/vuln/ghsa-2ww3-fxvq-293j https://vulnerability.circl.lu/vuln/pysec-2021-356 <p><strong>Affected:</strong> PyPI: nltk</p> <p>nltk is vulnerable to Inefficient Regular Expression Complexity</p> <p><strong>Affected:</strong> PyPI: nltk</p> <p>nltk is vulnerable to Inefficient Regular Expression Complexity</p> https://vulnerability.circl.lu/vuln/pysec-2021-356