CVE-2026-54706

Name	CVE-2026-54706
Description	OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. This issue is fixed in version 2.6.4.
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)
Debian Bugs	1139717

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
onionshare (PTS)	bullseye	2.2-3+deb11u2	vulnerable
	bookworm	2.6-5~deb12u1	vulnerable
	trixie	2.6.3-1	vulnerable
	forky, sid	2.6.4-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
onionshare	source	(unstable)	2.6.4-1			1139717

Notes

[trixie] - onionshare <no-dsa> (Minor issue)
[bookworm] - onionshare <postponed> (Minor issue; requires sharing a directory containing untrusted symlinks)
[bullseye] - onionshare <postponed> (Minor issue; requires sharing a directory containing untrusted symlinks)
https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf