Kurz gesagt
- CVE-2020-26302 ist eine Schwachstelle (HOCH (CVSS 7.5)) in is.js (is.js project), is_js.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.92%, höher als bei 60.7% aller Schwachstellen.
- Noch keine gepatchte Version bekannt: Herstellerhinweise unter Referenzen verfolgen.
| Package | Affected versions | Patched versions |
|---|
| is.js | ≤ 0.9.0
| No fix yet |
| is_js npm | ≤ 0.9.0
| No fix yet |
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.
NVD 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.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free