CVE-2026-24061

NameCVE-2026-24061
Descriptiontelnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
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)
ReferencesDLA-4453-1, DSA-6106-1
Debian Bugs1126047

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
inetutils (PTS)bullseye2:2.0-1+deb11u2vulnerable
bullseye (security)2:2.0-1+deb11u3fixed
bookworm2:2.4-2+deb12u1vulnerable
bookworm (security)2:2.4-2+deb12u2fixed
trixie2:2.6-3vulnerable
trixie (security)2:2.6-3+deb13u1fixed
forky, sid2:2.7-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
inetutilssourcebullseye2:2.0-1+deb11u3DLA-4453-1
inetutilssourcebookworm2:2.4-2+deb12u2DSA-6106-1
inetutilssourcetrixie2:2.6-3+deb13u1DSA-6106-1
inetutilssource(unstable)2:2.7-21126047

Notes

https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html
Introduced with: https://codeberg.org/inetutils/inetutils/commit/fa3245ac8c288b87139a0da8249d0a408c4dfb87 (inetutils-1_9_3)
Fixed by: https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b
Fixed by: https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc

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