CVE-2026-54707

Name	CVE-2026-54707
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 does not enforce the Receive mode disable_files setting in cli/onionshare_cli/web/receive_mode.py, where ReceiveModeRequest._get_file_stream() writes multipart file[] data to disk despite the text-only setting. 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	1139716

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
onionshare (PTS)	bullseye	2.2-3+deb11u2	fixed
	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	bullseye	(not affected)
onionshare	source	(unstable)	2.6.4-1			1139716

Notes

[trixie] - onionshare <no-dsa> (Minor issue)
[bookworm] - onionshare <postponed> (Minor issue; policy bypass by a peer who already holds the onion address and key)
[bullseye] - onionshare <not-affected> (disable_files setting introduced in 2.6; 2.2 has no file-upload-disable feature to bypass)
https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp