CVE-2026-93006

NameCVE-2026-93006
DescriptionA flaw was found in dnsmasq. The TFTP server can serve the wrong file contents because a recently used transfer cache is not invalidated when a transfer finishes. An attacker on the local network who can request a TFTP file may cause a later client to receive previously cached data instead of the requested file. In PXE network-boot environments this can substitute attacker-chosen boot content for a victim machine.
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
dnsmasq (PTS)bookworm, bookworm (security)2.90-4~deb12u2vulnerable
trixie2.91-1+deb13u2vulnerable
trixie (security)2.91-1+deb13u1vulnerable
forky, sid2.93-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
dnsmasqsource(unstable)(unfixed)

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2536075
check upstream details

Search for package or bug name: Reporting problems