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CVE-2026-40394

🗓️ 12 Apr 2026 19:17:34Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 8 Views

Varnish Cache may cause a workspace overflow DoS during an HTTP/2 upgrade from a speculative HTTP/1 transport, triggering daemon panic.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian11anyvarnish0varnish_0_any.deb
Debian12anyvarnish0varnish_0_any.deb
Debian13anyvarnish0varnish_0_any.deb
Debian14anyvarnish0varnish_0_any.deb
Debian999anyvarnish0varnish_0_any.deb

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12 Apr 2026 19:17Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.14 - 7.5
EPSS0.00236
SSVC
8