CVE-2020-26302
7.5 · HIGHOverview
CVE-2020-26302 is a high-severity vulnerability affecting is.js_project is.js. It was published on December 22, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.
Remediation
Check the references section for vendor advisories and patches from is.js_project. Update is.js to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| is.js_project | is.js | 0 | Affected |
Frequently Asked Questions
What is CVE-2020-26302?
CVE-2020-26302 is a high-severity vulnerability affecting is.js_project is.js. It was published on December 22, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-26302?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-26302?
Check the references section for vendor advisories and patches from is.js_project. Update is.js to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-26302?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-26302 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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