Vulnerability Details : CVE-2021-43309
Potential exploit
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
Vulnerability category: Denial of service
Products affected by CVE-2021-43309
- cpe:2.3:a:litejs:uri-template-lite:*:*:*:*:*:node.js:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43309
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43309
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
JFrog |
CWE ids for CVE-2021-43309
-
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.Assigned by: nvd@nist.gov (Primary)
-
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.Assigned by:
- nvd@nist.gov (Primary)
- reefs@jfrog.com (Secondary)
References for CVE-2021-43309
-
https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/
uri-template-lite URI.expand ReDoS | XRAY-211351 - JFrog Security ResearchExploit;Third Party Advisory
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