CVE-2026-106026

Name	CVE-2026-106026
Description	tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler.
Source	CVE (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 Package	Release	Version	Status
tftp-hpa (PTS)	bookworm	5.2+20150808-1.4	vulnerable
	trixie	5.2+20240610-3	vulnerable
	forky, sid	7.2+20261013-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
tftp-hpa	source	(unstable)	7.1-1

Notes

[trixie] - tftp-hpa <no-dsa> (Minor issue)
[bookworm] - tftp-hpa <postponed> (Minor issue)
https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=6735086fb6475c3e1f1daf9829836b3d06f14291 (tftp-hpa-6.0)