CVE-2021-3842
nltk: nltk is vulnerable to Inefficient Regular Expression Complexity
CVE-2021-3842 is fixed in 3 products on 1 platform, first by python-nltk 3.2.5-1ubuntu0.1+esm2, released January 4, 2022. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0157
75th percentile
nltk is vulnerable to Inefficient Regular Expression Complexity
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| nltk · Debian 12.15 (bookworm) | 3.6.7-1 | DEBIAN-CVE-2021-3842 | Jan 4, 2022 |
| nltk · Debian 13.5 (trixie) | 3.6.7-1 | DEBIAN-CVE-2021-3842 | Jan 4, 2022 |
| nltk · Debian 14 | 3.6.7-1 | DEBIAN-CVE-2021-3842 | Jan 4, 2022 |
| python-nltk · Ubuntu 18.04.6 LTS (bionic) | 3.2.5-1ubuntu0.1+esm2 | python-nltk 3.2.5-1ubuntu0.1+esm2 | Jan 4, 2022 |
| python3-nltk · Ubuntu 18.04.6 LTS (bionic) | 3.2.5-1ubuntu0.1+esm2 | python3-nltk 3.2.5-1ubuntu0.1+esm2 | Jan 4, 2022 |
| python3-nltk · Ubuntu 20.04 LTS (focal) | 3.4.5-2ubuntu0.1~esm2 | python3-nltk 3.4.5-2ubuntu0.1~esm2 | Jan 4, 2022 |
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