Vulnerability · Published Jan 18, 2022 · Assigned by GitHub_M

CVE-2022-21695Improper Access Control in Onionshare

Medium 4.3

In plain English

A medium-severity improper authentication in onionshare from onionshare. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.9%top 41.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 authenticated users (or unauthenticated in public mode) can send messages without being visible in the list of chat participants. This issue has been resolved in version 2.5.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	onionshare	2.5-1	DEBIAN-CVE-2022-21695
Debian:13	onionshare	2.5-1	DEBIAN-CVE-2022-21695
Debian:14	onionshare	2.5-1	DEBIAN-CVE-2022-21695
PyPI	onionshare-cli	2.5	PYSEC-2022-46
PyPI	onionshare-cli	2.5	GHSA-99p8-9p2c-49j4
Ubuntu:22.04:LTS	onionshare	2.2-3	UBUNTU-CVE-2022-21695
Ubuntu:24.04:LTS	onionshare	2.6-6ubuntu1	UBUNTU-CVE-2022-21695

Affected products (as reported)

Vendor	Product	Versions
onionshare	onionshare	< 2.5

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References

https://github.com/onionshare/onionshare/releases/tag/v2.5 x_refsource_MISC
https://github.com/onionshare/onionshare/security/advisories/GHSA-99p8-9p2c-49j4 x_refsource_CONFIRM