CVE-2024-34078

Publication date 6 May 2024

Last updated 30 May 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.1 · Medium

Score breakdown

html-sanitizer is an allowlist-based HTML cleaner. If using `keep_typographic_whitespace=False` (which is the default), the sanitizer normalizes unicode to the NFKC form at the end. Some unicode characters normalize to chevrons; this allows specially crafted HTML to escape sanitization. The problem has been fixed in 2.4.2.

Read the notes from the security team

Status

Package Ubuntu Release Status
python-html-sanitizer 25.04 plucky Not in release
24.10 oracular
Vulnerable
24.04 LTS noble
Vulnerable
23.10 mantic Not in release
22.04 LTS jammy
Vulnerable
20.04 LTS focal Not in release

Notes

0xnishit

package is FTBFS for jammy, noble

Severity score breakdown

Parameter Value
Base score 6.1 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N