CVE-2022-21691

Improper Access Control in Onionshare

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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 chat participants can spoof their channel leave message, tricking others into assuming they left the chatroom.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

onionshare

onionshare

affected

Version	Status	Constraints
`< 2.5`	affected	—

Configuration 1 [-]

cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2022-0182	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 chat participants can spoof their channel leave message, tricking others into assuming they left the chatroom.
Github GHSA	GHSA-w9m4-7w72-r766	Improper Access Control in Onionshare

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.701% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/onionshare/onionshare/releases/tag/v2.5
https://github.com/onionshare/onionshare/security/advisories/GHSA-w9m4-7w72-r766

History

Jul 14, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.0015}`	epss `{'score': 0.00158}`

Apr 23, 2025 8:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Onionshare Onionshare

Weaknesses

CWE-306

Sources

CVE record Updated: Apr 23, 2025, 7:10 PM

Status: PUBLISHED
Assigner: GitHub_M
Published: Jan 18, 2022, 10:00 PM
Updated: Apr 23, 2025, 7:10 PM
Reserved: Nov 16, 2021, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 3, 2024, 2:53 AM

Updated: Aug 3, 2024, 2:53 AM

NVD Updated: Jun 17, 2026, 4:26 AM

Status: Modified
Published: Jan 18, 2022, 10:15 PM
Modified: Jun 17, 2026, 4:26 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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