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CVE-2021-43309

Date: 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

Language: JS

Severity Score

Related Resources (8)

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://nvd.nist.gov/vuln/detail/CVE-2021-43309
https://github.com/litejs/uri-template-lite/commits/v22.9.0
https://github.com/litejs/uri-template-lite
https://github.com/litejs/uri-template-lite/commit/cbeec2b2a275d819fb534137a155df14729706f8
https://www.mend.io/vulnerability-database/CVE-2021-43309

Severity Score

Weakness Type (CWE)

Incorrect Comparison

CWE-697

Inefficient Regular Expression Complexity

CWE-1333

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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