CVE-2026-10805

NameCVE-2026-10805
DescriptionA flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager.
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
network-manager (PTS)bullseye1.30.6-1+deb11u1undetermined
bookworm1.42.4-1+deb12u1undetermined
trixie1.52.1-1undetermined
forky, sid1.56.1-1undetermined

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
network-managersource(unstable)undetermined

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2484613
check, no details in Red Hat Bugzilla entry, ask maintainer

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