OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to upload files on a…
Priority MEDIUM 47Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to upload files on a non-public node when using the --receive functionality.
Why it matters now
EPSS 0.02417 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed onionshare-cli (PyPI): 2.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | onionshare-cli (PyPI) | 2.3 to before 2.4 | 2.4 | Patch available | GHSA-7g47-xxff-9p85 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- onionshare-cli (PyPI) Vendor— Affected 2.3 to before 2.4 Fixed in 2.4 Patch available GHSA-7g47-xxff-9p85
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:* | 2.3 to before 2.4 | Vulnerable | onionshare |
- cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:* Versions 2.3 to before 2.4 Vulnerable ·onionshare
Remediation
- Fix · GHSA-7g47-xxff-9p85 onionshare-cli (PyPI) Fixed in 2.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-41868
- 2026-10-03 Alias added: GHSA-7g47-xxff-9p85
References
More Onionshare vulnerabilities
- TI-2022-06066 Cross-Site Scripting in Onionshare CVSS 3.1HIGH 8.7
- TI-2022-06068 Improper Access Control in Onionshare CVSS 3.1MEDIUM 4.3
- TI-2022-06065 Denial of Service in Onionshare CVSS 3.1HIGH 7.5
- TI-2022-06064 Out-of-bounds Read in Onionshare CVSS 3.1HIGH 7.5
- TI-2022-06069 Path traversal in Onionshare CVSS 3.1MEDIUM 6.5
- TI-2018-14146 The debug_mode function in web/web.py in OnionShare through 1.3.1, when --debug is… CVSS 3.0HIGH 7.0
Sources
- CVE-2021-41868 · CVE Program
- CVE-2021-41868 · NVD
- FIRST EPSS
- GHSA-7g47-xxff-9p85 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-41868 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences