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python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations

🗓️ 14 Jul 2026 15:56:27Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Python HTML parser vulnerability enables remote attacker to cause denial of service via repeated markup.

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Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-15308
9 Jul 202617:10
attackerkb
nessus
AlmaLinux 10 : python3.12 (ALSA-2026:39183)
15 Jul 202600:00
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AlmaLinux 8 : python3 (ALSA-2026:39320)
15 Jul 202600:00
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AlmaLinux 9 : python3.9 (ALSA-2026:39798)
15 Jul 202600:00
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RHEL 10 : python3.12 (RHSA-2026:39183)
14 Jul 202600:00
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nessus
RHEL 8 : python3 (RHSA-2026:39320)
15 Jul 202600:00
nessus
nessus
RHEL 9 : python3.12 (RHSA-2026:39771)
15 Jul 202600:00
nessus
nessus
RockyLinux 10 : python3.12 (RLSA-2026:39183)
15 Jul 202600:00
nessus
nessus
RockyLinux 8 : python3 (RLSA-2026:39320)
15 Jul 202600:00
nessus
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Linux Distros Unpatched Vulnerability : CVE-2026-15308
10 Jul 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10aarch64platform-python3.6.8-77.el8_10platform-python-3.6.8-77.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686platform-python3.6.8-77.el8_10platform-python-3.6.8-77.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64leplatform-python3.6.8-77.el8_10platform-python-3.6.8-77.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xplatform-python3.6.8-77.el8_10platform-python-3.6.8-77.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64platform-python3.6.8-77.el8_10platform-python-3.6.8-77.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10aarch64platform-python-debug3.6.8-77.el8_10platform-python-debug-3.6.8-77.el8_10.aarch64.rpm
Red Hat Enterprise Linux8.10i686platform-python-debug3.6.8-77.el8_10platform-python-debug-3.6.8-77.el8_10.i686.rpm
Red Hat Enterprise Linux8.10ppc64leplatform-python-debug3.6.8-77.el8_10platform-python-debug-3.6.8-77.el8_10.ppc64le.rpm
Red Hat Enterprise Linux8.10s390xplatform-python-debug3.6.8-77.el8_10platform-python-debug-3.6.8-77.el8_10.s390x.rpm
Red Hat Enterprise Linux8.10x86_64platform-python-debug3.6.8-77.el8_10platform-python-debug-3.6.8-77.el8_10.x86_64.rpm
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16 Jul 2026 14:00Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
CVSS 48.7
EPSS0.00553
SSVC
5