Medium 5.4Published Jul 31, 2026

CVE-2026-54707OnionShare Receive mode writes uploaded files even when file uploads are disabled

Updated under an hour ago (Oct 27, 2026, 7:10 AM ET)

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It affects onionshare. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

onionshare onionshare onionshare:onionshare (from the name)	before 2.6.4	CNA record

References

References

https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp	x-refsource-confirm
https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5	x-refsource-misc
https://github.com/onionshare/onionshare/releases/tag/v2.6.4	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.