Vulnerability Details CVE-2020-6817
bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS). Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 38.8%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2020-6817
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cpe:2.3:a:mozilla:bleach:-
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cpe:2.3:a:mozilla:bleach:0.1.2
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cpe:2.3:a:mozilla:bleach:0.2.0
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cpe:2.3:a:mozilla:bleach:0.2.1
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cpe:2.3:a:mozilla:bleach:0.2.2
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cpe:2.3:a:mozilla:bleach:0.3.0
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cpe:2.3:a:mozilla:bleach:0.3.1
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cpe:2.3:a:mozilla:bleach:0.3.2
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cpe:2.3:a:mozilla:bleach:0.3.3
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cpe:2.3:a:mozilla:bleach:0.3.4
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cpe:2.3:a:mozilla:bleach:0.3.5
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cpe:2.3:a:mozilla:bleach:0.4.0
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cpe:2.3:a:mozilla:bleach:0.5.0
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cpe:2.3:a:mozilla:bleach:0.5.1
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cpe:2.3:a:mozilla:bleach:1.0.0
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cpe:2.3:a:mozilla:bleach:1.0.1
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cpe:2.3:a:mozilla:bleach:1.0.2
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cpe:2.3:a:mozilla:bleach:1.0.3
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cpe:2.3:a:mozilla:bleach:1.0.4
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cpe:2.3:a:mozilla:bleach:1.1.0
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cpe:2.3:a:mozilla:bleach:1.1.1
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cpe:2.3:a:mozilla:bleach:1.1.2
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cpe:2.3:a:mozilla:bleach:1.1.3
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cpe:2.3:a:mozilla:bleach:1.1.4
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cpe:2.3:a:mozilla:bleach:1.1.5
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cpe:2.3:a:mozilla:bleach:1.2
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cpe:2.3:a:mozilla:bleach:1.2.1
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cpe:2.3:a:mozilla:bleach:1.2.2
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cpe:2.3:a:mozilla:bleach:1.4
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cpe:2.3:a:mozilla:bleach:1.4.1
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cpe:2.3:a:mozilla:bleach:1.4.2
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cpe:2.3:a:mozilla:bleach:1.4.3
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cpe:2.3:a:mozilla:bleach:1.5
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cpe:2.3:a:mozilla:bleach:2.0
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cpe:2.3:a:mozilla:bleach:2.1
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cpe:2.3:a:mozilla:bleach:2.1.1
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cpe:2.3:a:mozilla:bleach:2.1.2
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cpe:2.3:a:mozilla:bleach:2.1.3
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cpe:2.3:a:mozilla:bleach:2.1.4
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cpe:2.3:a:mozilla:bleach:3.0.0
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cpe:2.3:a:mozilla:bleach:3.0.1
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cpe:2.3:a:mozilla:bleach:3.0.2
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cpe:2.3:a:mozilla:bleach:3.1.0
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cpe:2.3:a:mozilla:bleach:3.1.1
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cpe:2.3:a:mozilla:bleach:3.1.2
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cpe:2.3:a:mozilla:bleach:3.1.3