CVE-2022-21696

Username spoofing in OnionShare

Published Jan 18, 2022 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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 at the end of the username.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-0187 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 at the end of the username.
Github GHSA Github GHSA GHSA-68vr-8f46-vc9f Username spoofing in OnionShare
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00198}

epss

{'score': 0.00209}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 23, 2025, 7:11 PM
Reserved
Nov 16, 2021, 12:00 AM
Status
Modified
Published
Jan 18, 2022, 8:15 PM
Modified
Jun 17, 2026, 4:26 AM