Remote unauthenticated attackers able to upload files in Onionshare
OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to upload files on a non-public node when using the --receive functionality.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | onionshare-cli | >= 2.3, < 2.4 | 2.4 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-41868
- https://github.com/onionshare/onionshare/issues/1396
- https://github.com/onionshare/onionshare/pull/1404
- https://github.com/onionshare/onionshare
- https://www.ihteam.net/advisory/onionshare
- https://pypi.org/project/onionshare-cli
- https://github.com/advisories/GHSA-7g47-xxff-9p85
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
-- Platform
- Python (PyPI)
- Package
onionshare-cli- Disclosed
- 19.11.2021
- Updated
- 11.10.2026 12:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7g47-xxff-9p85 - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-434 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: onionshare-cli
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 13
- First → latest
- 11.2021 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 10
Disclosures per year
- 2021: 2
- 2022: 9
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 2
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