{"id":"DEBIAN-CVE-2026-76151","details":"Out-of-bounds read (buffer over-read) in the HTTP Cache-Control response header parsing in the QtNetwork module in Qt Group Qt 6.0.0 through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to cause a denial of service (application crash) via an excessively large Cache-Control header value returned by an untrusted or compromised HTTP server to an application using QNetworkAccessManager. Only the client side of the connection is affected and 32-bit builds are not affected; the out-of-bounds access is read-only, with no information disclosure and no code execution.","modified":"2026-09-21T22:01:03.642521534Z","published":"2026-09-16T10:16:52.660Z","upstream":["CVE-2026-76151"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-76151"}],"affected":[{"package":{"name":"qt6-base","ecosystem":"Debian:12","purl":"pkg:deb/debian/qt6-base?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2+dfsg-1","6.10.2+dfsg-10","6.10.2+dfsg-10+hurd.1","6.10.2+dfsg-11","6.10.2+dfsg-12","6.10.2+dfsg-13","6.10.2+dfsg-14","6.10.2+dfsg-15","6.10.2+dfsg-16","6.10.2+dfsg-2","6.10.2+dfsg-3","6.10.2+dfsg-4","6.10.2+dfsg-5","6.10.2+dfsg-6","6.10.2+dfsg-7","6.10.2+dfsg-7+hurd.1","6.10.2+dfsg-8","6.10.2+dfsg-9","6.11.2+dfsg-1","6.11.2+dfsg-2","6.11.2+dfsg-3","6.11.2+dfsg-4","6.11.2+dfsg-5","6.4.2+dfsg-10","6.4.2+dfsg-11","6.4.2+dfsg-11~bpo11+1","6.4.2+dfsg-12","6.4.2+dfsg-13","6.4.2+dfsg-14","6.4.2+dfsg-15","6.4.2+dfsg-16","6.4.2+dfsg-17","6.4.2+dfsg-18","6.4.2+dfsg-18+loong64","6.4.2+dfsg-19","6.4.2+dfsg-20","6.4.2+dfsg-21","6.4.2+dfsg-21.1","6.6.0+dfsg-1","6.6.0+dfsg-2","6.6.0+dfsg-3","6.6.0+dfsg-4","6.6.0+dfsg-5","6.6.0+dfsg-6","6.6.1+dfsg-1","6.6.1+dfsg-2","6.6.1+dfsg-3","6.6.1+dfsg-4","6.6.1+dfsg-5","6.6.1+dfsg-6","6.6.2+dfsg-1","6.6.2+dfsg-10","6.6.2+dfsg-11","6.6.2+dfsg-12","6.6.2+dfsg-2","6.6.2+dfsg-3","6.6.2+dfsg-4","6.6.2+dfsg-5","6.6.2+dfsg-6","6.6.2+dfsg-7","6.6.2+dfsg-8","6.6.2+dfsg-9","6.7.2+dfsg-1","6.7.2+dfsg-2","6.7.2+dfsg-3","6.7.2+dfsg-4","6.7.2+dfsg-4+m68k","6.7.2+dfsg-5","6.7.2+dfsg-6","6.8.2+dfsg-1","6.8.2+dfsg-10","6.8.2+dfsg-10.1","6.8.2+dfsg-2","6.8.2+dfsg-3","6.8.2+dfsg-4","6.8.2+dfsg-5","6.8.2+dfsg-5+m68k","6.8.2+dfsg-6","6.8.2+dfsg-7","6.8.2+dfsg-8","6.8.2+dfsg-9","6.9.1+dfsg-1","6.9.1+dfsg-2","6.9.1+dfsg-3","6.9.1+dfsg-4","6.9.1+dfsg-5","6.9.2+dfsg-1","6.9.2+dfsg-2","6.9.2+dfsg-3","6.9.2+dfsg-4"],"ecosystem_specific":{"urgency":"not 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