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CVE-2026-71554

🗓️ 06 Aug 2026 21:46:43Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 9 Views

CVE-2026-71554 fixes host header smuggling in h2 Python HTTP/2 stack on downgrade to HTTP/1.1.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian11allpython-h24.0.0-3+deb11u1python-h2_4.0.0-3+deb11u1_all.deb
Debian12allpython-h24.1.0-4python-h2_4.1.0-4_all.deb
Debian13allpython-h24.2.0-1python-h2_4.2.0-1_all.deb
Debian14allpython-h24.3.0-2python-h2_4.3.0-2_all.deb
Debian999allpython-h24.3.0-2python-h2_4.3.0-2_all.deb

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06 Aug 2026 21:46Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.15.3
EPSS0.00325
SSVC
9