GHSA-55x5-fj6c-h6m8 · 深刻度： medium · エコシステム： pip — lxml's HTML Cleaner allows crafted and SVG embedded scripts to pass through
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.
総合評価: CVE-2021-43818 は中リスク（58.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 2.46%、82 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 5.43% | 2.46% | -2.97% |
| 2 | 2026-04-19 | 4.07% | 5.43% | +1.36% |
| 3 | 2026-03-21 | — | 4.07% | — |
EPSS の全履歴 （全 42 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.2 | 3.1 | HIGH |
|
2.8 | 4.7 | [email protected] |
| 7.1 | 3.1 | HIGH |
|
2.8 | 3.7 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
GHSA-55x5-fj6c-h6m8 · 深刻度： medium · エコシステム： pip — lxml's HTML Cleaner allows crafted and SVG embedded scripts to pass through
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2021-43818: 1 source package rows (py3-lxml); 8 state rows across 8 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-community, edge-main); fixed 8, open 0. | https://security.alpinelinux.org/vuln/CVE-2021-43818 |
debian
|
not yet assigned | CVE-2021-43818 not yet assigned priority: Debian including 1 source packages (lxml), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-43818 |
gentoo
|
normal | CVE-2021-43818: 1 GLSA(s) (202208-06), 1 atom(s) (dev-python/lxml); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-43818 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-43818 |
suse
|
medium | CVE-2021-43818 severity moderate: SUSE including 388 source package names (1.7.7.0.1.2016:python3-lxml-4.7.1-3.7.1, 1.8.6.0.3.2.5:python3-lxml-4.7.1-3.7.1, …), 640 product×package rows across 167 product lines (Container ses/7.1/cephcsi/cephcsi, Container ses/7.1/rook/ceph, … (167 product lines)): Fixed 366, Known Affected 231, Will Not Fix 43. | https://www.suse.com/security/cve/CVE-2021-43818/ |
ubuntu
|
medium | CVE-2021-43818 medium priority: Ubuntu including 1 source packages (lxml), 8 status rows across 8 suites (bionic, focal, hirsute, impish, jammy, trusty, upstream, xenial): released 7, needs-triage 1. | https://ubuntu.com/security/CVE-2021-43818 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| lxml | lxml | < 4.6.5 | cpe:2.3:a:lxml:lxml:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| netapp | solidfire_enterprise_sds | — | cpe:2.3:a:netapp:solidfire_enterprise_sds:-:*:*:*:*:*:*:* |
| netapp | hci_storage_node_firmware | — | cpe:2.3:o:netapp:hci_storage_node_firmware:-:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 | cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_network_exposure_function | 22.1.1 | cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_policy | 22.2.0 | cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:* |
| oracle | http_server | 12.2.1.3.0 | cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | http_server | 12.2.1.4.0 | cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | zfs_storage_appliance_kit | 8.8 | cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* |