CVE-2026-95620

NameCVE-2026-95620
DescriptionA use-after-free vulnerability in the Qt QNetworkAccessManager HTTP/2 client support of the Qt Network module allows a malicious or compromised HTTP/2 server to cause the client application to crash, affecting availability.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qt6-base (PTS)bookworm6.4.2+dfsg-10vulnerable
trixie6.8.2+dfsg-9+deb13u2fixed
forky6.11.2+dfsg-5vulnerable
sid6.11.2+dfsg-6vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qt6-basesourcetrixie(not affected)
qt6-basesource(unstable)(unfixed)

Notes

[trixie] - qt6-base <not-affected> (Vulnerable code not present)
https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-95620:
Fixed by: https://github.com/qt/qtbase/commit/c4ae6491d473e36f34840a236c5fd0f4bc800558

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