VDB
ALPINE-CVE-2021-43818
ALPINE-CVE-2021-43818
PUBLISHED
CVSS 7.099999904632568 HIGH
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
Risk Scores
CVSS v3.1
7.099999904632568
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | py3-lxml | 2.2.6-r0, 4.6.4-r0, 4.6.3-r1 |
| Alpine:v3.17 | py3-lxml | 2.2.6-r0, 4.6.4-r0, 4.6.3-r1 |
| Alpine:v3.21 | py3-lxml | 4.6.4-r0, 0, 2.2.6-r0 |
| Alpine:v3.20 | py3-lxml | 0, 2.2.6-r0, 2.2.8-r1 |
| Alpine:v3.18 | py3-lxml | 4.6.4-r0, 4.6.3-r1, 4.6.3-r0 |
| Alpine:v3.16 | py3-lxml | 3.7.1-r0, 2.2.8-r1, 2.3.4-r1 |
| Alpine:v3.22 | py3-lxml | 4.6.4-r0, 0, 2.2.6-r0 |
| Alpine:v3.19 | py3-lxml | 4.6.4-r0, 4.6.3-r1, 4.6.3-r0 |
Timeline
- Dec 13, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch