CVE-2026-54706CWE-59

CVE-2026-54706

Medium · published July 31, 2026

CVSS v3.1
4.8
EPSS
0%
Percentile
26.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00344 · 26.6th percentile
Weakness
CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-07-31T21:16Z
References (4)
https://github.com/onionshare/onionshare/commit/48f31cfac077fcc9c04c67c2a6dbf87d956f5eec · [email protected]https://github.com/onionshare/onionshare/releases/tag/v2.6.4 · [email protected]https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf · [email protected]https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 31 JUL 16:30Z
    OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files
    cvelistv5