CVE-2018-1107

Name: CVE-2018-1107
Creator: NVD / NIST
Published: 2021-03-30T02:15:14.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2018-1107 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

1.20%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Is-My-Json-Valid Project	Is-My-Json-Valid	< 1.4.1
Is-My-Json-Valid Project	Is-My-Json-Valid	>= 2.0.0, < 2.17.2

References

https://bugzilla.redhat.com/show_bug.cgi?id=1546357Issue Tracking, Patch, Third Party Advisory
https://snyk.io/vuln/npm:is-my-json-valid:20180214Exploit, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1546357Issue Tracking, Patch, Third Party Advisory
https://snyk.io/vuln/npm:is-my-json-valid:20180214Exploit, Third Party Advisory

Timeline

Published: Mar 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1107?

How severe is CVE-2018-1107?

CVE-2018-1107 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1107?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1107?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST