CVE-2026-54706

MEDIUM

OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

Title source: cna
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 4.8
EPSS 0.0024
EPSS Percentile 15.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-59
Status published
Products (2)
onionshare/onionshare < 2.6.4
pypi/onionshare-cli 0 - 2.6.4PyPI
Published Jul 31, 2026
Tracked Since Jul 31, 2026