CVE-2021-43818

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.
Injection
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 82%
Affected Products (NVD)
VendorProductVersion
lxmllxml
𝑥
< 4.6.5
debiandebian_linux
9.0
debiandebian_linux
10.0
debiandebian_linux
11.0
netappsolidfire
-
netappsolidfire_enterprise_sds
-
netapphci_storage_node_firmware
-
oraclecommunications_cloud_native_core_binding_support_function
22.1.3
oraclecommunications_cloud_native_core_network_exposure_function
22.1.1
oraclecommunications_cloud_native_core_policy
22.2.0
oraclehttp_server
12.2.1.3.0
oraclehttp_server
12.2.1.4.0
oraclezfs_storage_appliance_kit
8.8
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
lxml
bookworm
4.9.2-1
fixed
bullseye
4.6.3+dfsg-0.1+deb11u1
fixed
bullseye (security)
4.6.3+dfsg-0.1+deb11u1
fixed
sid
5.3.0-1
fixed
trixie
5.3.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
lxml
bionic
Fixed 4.2.1-1ubuntu0.6
released
focal
Fixed 4.5.0-1ubuntu0.5
released
hirsute
Fixed 4.6.3-1ubuntu0.2
released
impish
Fixed 4.6.3+dfsg-0.1ubuntu0.2
released
jammy
Fixed 4.7.1-1
released
trusty
Fixed 3.3.3-1ubuntu0.2+esm5
released
xenial
Fixed 3.5.0-1ubuntu0.4+esm2
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
python2-lxml
suse enterprise desktop 15 SP3
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP3
4.7.1-3.7.1
fixed
suse enterprise server 15 SP2
4.7.1-3.7.1
fixed
suse enterprise server 15 SP3
4.7.1-3.7.1
fixed
python2-lxml-devel
suse enterprise desktop 15 SP3
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP3
4.7.1-3.7.1
fixed
suse enterprise server 15 SP2
4.7.1-3.7.1
fixed
suse enterprise server 15 SP3
4.7.1-3.7.1
fixed
python3-lxml
suse enterprise desktop 15 SP3
4.7.1-3.7.1
fixed
suse enterprise desktop 15 SP4
4.7.1-3.7.1
fixed
suse enterprise desktop 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise desktop 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise desktop 15 SP7
4.9.1-150500.3.4.3
fixed
suse enterprise sap 15 SP3
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP4
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise sap 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise sap 15 SP7
4.9.1-150500.3.4.3
fixed
suse enterprise server 15 SP2
4.7.1-3.7.1
fixed
suse enterprise server 15 SP3
4.7.1-3.7.1
fixed
suse enterprise server 15 SP4
4.7.1-3.7.1
fixed
suse enterprise server 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise server 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise server 15 SP7
4.9.1-150500.3.4.3
fixed
python3-lxml-devel
suse enterprise desktop 15 SP3
4.7.1-3.7.1
fixed
suse enterprise desktop 15 SP4
4.7.1-3.7.1
fixed
suse enterprise desktop 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise desktop 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise desktop 15 SP7
4.9.1-150500.3.4.3
fixed
suse enterprise sap 15 SP3
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP4
4.7.1-3.7.1
fixed
suse enterprise sap 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise sap 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise sap 15 SP7
4.9.1-150500.3.4.3
fixed
suse enterprise server 15 SP2
4.7.1-3.7.1
fixed
suse enterprise server 15 SP3
4.7.1-3.7.1
fixed
suse enterprise server 15 SP4
4.7.1-3.7.1
fixed
suse enterprise server 15 SP5
4.9.1-150500.1.2
fixed
suse enterprise server 15 SP6
4.9.1-150500.1.2
fixed
suse enterprise server 15 SP7
4.9.1-150500.3.4.3
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
python-lxml
Amazon Linux 2
0:3.2.1-4.amzn2.0.4
fixed
python-lxml-debuginfo
Amazon Linux 1
0:3.2.1-4.10.amzn1
fixed
Amazon Linux 2
0:3.2.1-4.amzn2.0.4
fixed
python-lxml-debugsource
Amazon Linux 2023
0:4.7.1-3.amzn2023.0.1
fixed
python-lxml-docs
Amazon Linux 2
0:3.2.1-4.amzn2.0.4
fixed
python26-lxml
Amazon Linux 1
0:3.2.1-4.10.amzn1
fixed
python26-lxml-docs
Amazon Linux 1
0:3.2.1-4.10.amzn1
fixed
python27-lxml
Amazon Linux 1
0:3.2.1-4.10.amzn1
fixed
python27-lxml-docs
Amazon Linux 1
0:3.2.1-4.10.amzn1
fixed
python3-lxml
Amazon Linux 2023
0:4.7.1-3.amzn2023.0.1
fixed
python3-lxml-debuginfo
Amazon Linux 2023
0:4.7.1-3.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
python-lxml
CBL-Mariner 1.0
0:4.7.1-1.cm1
fixed
CBL-Mariner 2.0
0:4.8.0-1.cm2
fixed
References