CVE-2021-43309
HIGHCVSS 7.5/10EPSS 0.86%
Last modified
CVE-2021-43309 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.86% chance of exploitation in the next 30 days.
Description
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Litejs | Uri-Template-Lite | All versions |
References
- https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/Exploit, Third Party Advisory
- https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43309?
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
How severe is CVE-2021-43309?
CVE-2021-43309 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43309?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-43309?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST