High severity7.5NVD Advisory· Published Jan 4, 2022· Updated Jun 17, 2026
CVE-2021-3842
CVE-2021-3842
Description
nltk is vulnerable to Inefficient Regular Expression Complexity
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nltkPyPI | < 3.6.6 | 3.6.6 |
Affected products
7- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4dnvdPatchThird Party AdvisoryWEB
- huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866anvdExploitIssue TrackingPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-rqjh-jp2r-59cjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-3842ghsaADVISORY
- github.com/nltk/nltk/pull/2906ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2022-5.yamlghsaWEB
News mentions
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