CVE-2020-6817

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Source
https://cve.org/CVERecord?id=CVE-2020-6817
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-6817.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-6817
Aliases
Downstream
Related
Published
2023-02-16T22:15:10.650Z
Modified
2026-07-22T19:07:40.492891074Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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']}).

References

Affected packages

Git / github.com/mozilla/bleach

Affected ranges

Type
GIT
Repo
https://github.com/mozilla/bleach
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6e74a5027b57055cdaeb040343d32934121392a7
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.1.4"
        }
    ],
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:*"
}

Affected versions

0.*
0.1.2
0.2.0
0.2.1
0.2.2
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.4.0
0.5.0
1.*
1.0.0
1.0.0rc
1.0.0rc2
1.0.1
1.0.2
1.0.3
v1.*
v1.0.4
v1.1.0
v1.1.1
v1.2.1
v1.2.2
v1.4
v1.4.1
v1.4.2
v1.5
v2.*
v2.0
v2.1
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.1.0
v3.1.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-6817.json"