OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-0180 | OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network. |
Github GHSA |
GHSA-jh82-c5jw-pxpc | Denial of Service in Onionshare |
Ubuntu USN |
USN-7625-1 | OnionShare vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 16 Jul 2025 13:45:00 +0000
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Mon, 14 Jul 2025 13:45:00 +0000
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Wed, 23 Apr 2025 20:15:00 +0000
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-04-23T19:10:29.213Z
Reserved: 2021-11-16T00:00:00.000Z
Link: CVE-2022-21689
Updated: 2024-08-03T02:46:39.394Z
Status : Modified
Published: 2022-01-18T22:15:07.987
Modified: 2024-11-21T06:45:14.277
Link: CVE-2022-21689
No data.
OpenCVE Enrichment
No data.
EUVD
Github GHSA
Ubuntu USN