Vulnerability DatabaseCVE-2021-43309
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CVE-2021-43309
August 24, 2022
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the uri-template-lite npm package, when an attacker is able to supply arbitrary input to the "URI.expand" method
Affected Packages
uri-template-lite (NPM):
Affected version(s) >=0.0.1 <22.9.0
Fix Suggestion:
Update to version 22.9.0
Related Resources (7)
https://github.com/litejs/uri-template-lite/commits/v22.9.0
https://github.com/litejs/uri-template-lite/commit/cbeec2b2a275d819fb534137a155df14729706f8
https://nvd.nist.gov/vuln/detail/CVE-2021-43309
https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351
https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/
https://github.com/litejs/uri-template-lite/compare/v22.1.0...v22.9.0
https://github.com/litejs/uri-template-lite
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Inefficient Regular Expression Complexity
CWE-1333
Incorrect Comparison
CWE-697
EPSS
Base Score:
0.33