VYPR
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.

PackageAffected versionsPatched versions
nltkPyPI
< 3.6.63.6.6

Affected products

7
  • Nltk/Nltkcpe-rescue2 versions
    unspecified+ 1 more
    • (no CPE)range: unspecified
    • cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*range: <3.6.6
  • ghsa-coords
    Range: < 3.6.6
  • Debian/linux3 versions
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

6

News mentions

0

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