Medium

Regular expression deinal of service (ReDoS) in is-my-json-valid

  • Disclosed: 06.01.2022
  • Updated: 11.10.2026 10:22

It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.

Affected software

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PlatformPackageVulnerable versionsFixed in
npm package is-my-json-valid >= 2.0.0, < 2.17.2, < 1.4.1 2.17.2, 1.4.1

References

CVSS score 5.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-400
Platform
npm
Package
is-my-json-valid
Disclosed
06.01.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-4hpf-3wq7-5rpr - CC BY 4.0

Vulnerability history: is-my-json-valid

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
10.2017 01.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 1

Disclosures per year

  1. 2017: 1
  2. 2018: 0
  3. 2019: 0
  4. 2020: 0
  5. 2021: 0
  6. 2022: 1
  7. 2023: 0
  8. 2024: 0
  9. 2025: 0
  10. 2026: 0
  1. Regular expression deinal of service (ReDoS) in is-my-json-valid this entry
    Medium · 5.3 CVE-2018-1107 >= 2.0.0, < 2.17.2, < 1.4.1 2.17.2, 1.4.1
  2. High · 7.5 CVE-2016-2537 < 2.12.4 2.12.4

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