VULNERABILITY INTELLIGENCE

CVE-2020-1920

CVSS score7.5 HIGH

EPSS probability1.36%

CISA KEVNot currently listed

Published2021-06-01

Last modified2026-06-17

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

Description

A regular expression denial of service (ReDoS) vulnerability in the validateBaseUrl function can cause the application to use excessive resources, become unresponsive, or crash. This was introduced in react-native version 0.59.0 and fixed in version 0.64.1.

Weakness classification

CWE-697: Incorrect Comparison
CWE-1333: Inefficient Regular Expression Complexity

Primary references

cve-assign@fb.com — Patch, Third Party Advisory
cve-assign@fb.com — Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory