PatchTheCVECVE-2022-21696: OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
CVE-2022-21696 is a medium-severity flaw (CVSS 4.3) affecting onionshare. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters a
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 46%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2022-01-18 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-21696?
onionshare: upgrade to 2.5. Exact commands for each OS are on this page.
Is CVE-2022-21696 being exploited?
CVE-2022-21696 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-21696 affect?
CVE-2022-21696 affects onionshare. Severity is medium (CVSS 4.3). 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 it is possible to change the username to that of another chat participant
How urgent is CVE-2022-21696?
Priority 28/100. No elevated risk signals yet.
Related CVEs
- CVE-2022-21695 MEDIUM 4.3 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
- CVE-2022-21694 LOW 3.7 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
- CVE-2022-21693 MEDIUM 6.3 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
- CVE-2022-21692 MEDIUM 4.3 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
- CVE-2022-21691 MEDIUM 4.3 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat