CVE-2020-1920
HIGH
7.5
CVSS Score
Published: June 1, 2021 at 11:45 AM UTC
Updated: June 17, 2026 at 03:02 AM UTC
1 product affected across 1 vendorReact Native
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Vendor states this is fixed in 0.64.1 (unaffected)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/facebook/react-native/commit/ca09ae82715e33c9ac77b3fa55495cf84ba891c7x_refsource_CONFIRMRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/facebook/react-native/releases/tag/v0.64.1CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1333CWE-697
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