What’s Vulnerable › Vulnerabilities

CVE-2018-1107

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-30 · updated 2026-06-17
• Weakness: CWE-400

Description

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 products

• nodejs-is-my-json-valid: before 1.4.1; from 2.0.0 before 2.17.2 — fixed in 1.4.1, 2.17.2

How to fix

Upgrade to a fixed version: nodejs-is-my-json-valid 1.4.1, 2.17.2. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1546357
• https://snyk.io/vuln/npm:is-my-json-valid:20180214
• https://bugzilla.redhat.com/show_bug.cgi?id=1546357
• https://snyk.io/vuln/npm:is-my-json-valid:20180214

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