vulnerability
FreeBSD: VID-4c52ec3c-86f3-11ea-b5b4-641c67a117d8 (CVE-2020-6817): py-bleach -- regular expression denial-of-service
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Apr 26, 2020 | Apr 27, 2020 | Dec 10, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Apr 26, 2020
Added
Apr 27, 2020
Modified
Dec 10, 2025
Description
Bleach developers reports: 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']}).
Solutions
freebsd-upgrade-package-py27-bleachfreebsd-upgrade-package-py35-bleachfreebsd-upgrade-package-py36-bleachfreebsd-upgrade-package-py37-bleachfreebsd-upgrade-package-py38-bleach
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