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lxml: lxml-html-clean: lxml: URL bypass vulnerability in Cleaner via missing xlink:href

🗓️ 09 Sep 2026 22:16:57Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

lxml URL bypass via missing xlink:href in link_attrs enabling code execution or info leak.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64python3.12-lxml4.9.3-2.el9_8.1python3.12-lxml-4.9.3-2.el9_8.1.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lepython3.12-lxml4.9.3-2.el9_8.1python3.12-lxml-4.9.3-2.el9_8.1.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xpython3.12-lxml4.9.3-2.el9_8.1python3.12-lxml-4.9.3-2.el9_8.1.s390x.rpm
Red Hat Enterprise Linux9.8x86_64python3.12-lxml4.9.3-2.el9_8.1python3.12-lxml-4.9.3-2.el9_8.1.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64python3.12-lxml-debuginfo4.9.3-2.el9_8.1python3.12-lxml-debuginfo-4.9.3-2.el9_8.1.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lepython3.12-lxml-debuginfo4.9.3-2.el9_8.1python3.12-lxml-debuginfo-4.9.3-2.el9_8.1.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xpython3.12-lxml-debuginfo4.9.3-2.el9_8.1python3.12-lxml-debuginfo-4.9.3-2.el9_8.1.s390x.rpm
Red Hat Enterprise Linux9.8x86_64python3.12-lxml-debuginfo4.9.3-2.el9_8.1python3.12-lxml-debuginfo-4.9.3-2.el9_8.1.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64python3.12-lxml-debugsource4.9.3-2.el9_8.1python3.12-lxml-debugsource-4.9.3-2.el9_8.1.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lepython3.12-lxml-debugsource4.9.3-2.el9_8.1python3.12-lxml-debugsource-4.9.3-2.el9_8.1.ppc64le.rpm
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10 Sep 2026 12:49Current
CVSS 3.18.2
EPSS0.0024
SSVC
3