Vulnerability Details CVE-2019-20922
Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.5%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 7.8
Products affected by CVE-2019-20922
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cpe:2.3:a:handlebarsjs:handlebars:4.0.0
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cpe:2.3:a:handlebarsjs:handlebars:4.0.1
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cpe:2.3:a:handlebarsjs:handlebars:4.0.10
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cpe:2.3:a:handlebarsjs:handlebars:4.0.11
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cpe:2.3:a:handlebarsjs:handlebars:4.0.12
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cpe:2.3:a:handlebarsjs:handlebars:4.0.13
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cpe:2.3:a:handlebarsjs:handlebars:4.0.13-0
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cpe:2.3:a:handlebarsjs:handlebars:4.0.14
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cpe:2.3:a:handlebarsjs:handlebars:4.0.2
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cpe:2.3:a:handlebarsjs:handlebars:4.0.3
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cpe:2.3:a:handlebarsjs:handlebars:4.0.4
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cpe:2.3:a:handlebarsjs:handlebars:4.0.5
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cpe:2.3:a:handlebarsjs:handlebars:4.0.6
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cpe:2.3:a:handlebarsjs:handlebars:4.0.7
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cpe:2.3:a:handlebarsjs:handlebars:4.0.8
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cpe:2.3:a:handlebarsjs:handlebars:4.0.9
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cpe:2.3:a:handlebarsjs:handlebars:4.1.0
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cpe:2.3:a:handlebarsjs:handlebars:4.1.1
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cpe:2.3:a:handlebarsjs:handlebars:4.1.2
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cpe:2.3:a:handlebarsjs:handlebars:4.1.2-0
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cpe:2.3:a:handlebarsjs:handlebars:4.2.0
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cpe:2.3:a:handlebarsjs:handlebars:4.2.1
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cpe:2.3:a:handlebarsjs:handlebars:4.2.2
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cpe:2.3:a:handlebarsjs:handlebars:4.3.0
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cpe:2.3:a:handlebarsjs:handlebars:4.3.1
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cpe:2.3:a:handlebarsjs:handlebars:4.3.2
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cpe:2.3:a:handlebarsjs:handlebars:4.3.3
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cpe:2.3:a:handlebarsjs:handlebars:4.3.4
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cpe:2.3:a:handlebarsjs:handlebars:4.3.5
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cpe:2.3:a:handlebarsjs:handlebars:4.4.0
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cpe:2.3:a:handlebarsjs:handlebars:4.4.1
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cpe:2.3:a:handlebarsjs:handlebars:4.4.2
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cpe:2.3:a:handlebarsjs:handlebars:4.4.3
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cpe:2.3:a:handlebarsjs:handlebars:4.4.4