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Fencer Vulns
high 7.5

CVE-2021-3794 json

Inefficient Regular Expression Complexity in vuelidate/vuelidate

published 2021-09-15 5 y ago modified 2026-06-17 4 mo ago also GHSA-vvf2-ppj9-pp49 , EUVD-2021-2119

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

vuelidate is vulnerable to Inefficient Regular Expression Complexity

Patch / fix

  • npm @vuelidate/validators 2.0.0-alpha.22
  • vuelidate_project vuelidate 0.7.7

Exploit prediction

1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/d8201b98-fb91-4c12-a6f7-181b4a20d9b7 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm @vuelidate/validators
<2.0.0-alpha.22
2.0.0-alpha.22

Affected products

  • vuelidate vuelidate/vuelidate

Classification

Weakness
  • CWE-1333 Inefficient Regular Expression Complexity
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-697 Incorrect Comparison

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.