Description
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']}).
Published: 2023-02-16
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2167-1 python-bleach security update
EUVD EUVD EUVD-2020-0056 regular expression denial-of-service (ReDoS) in Bleach
Github GHSA Github GHSA GHSA-vqhp-cxgc-6wmm regular expression denial-of-service (ReDoS) in Bleach
Ubuntu USN Ubuntu USN USN-8077-1 Bleach vulnerabilities
History

Wed, 19 Mar 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-03-19T15:21:23.888Z

Reserved: 2020-01-10T00:00:00.000Z

Link: CVE-2020-6817

cve-icon Vulnrichment

Updated: 2024-08-04T09:11:05.144Z

cve-icon NVD

Status : Modified

Published: 2023-02-16T22:15:10.650

Modified: 2025-03-19T16:15:14.917

Link: CVE-2020-6817

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses