CVE-2022-21693: OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat

Routine

MEDIUM 6.3UPGRADE

CVE-2022-21693 is a medium-severity flaw (CVSS 6.3) 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 an adversary with a primitive that allows for filesystem access from the context of the Onionshare process can access sensitive files in the entire user home folder. This could lead to the leaking of sensitive data. Due to the automatic exclusion of hidden folders, the impact is red

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-22
Published	2022-01-18
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: onionshare

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-01-18 22:15 UTCPublished CVE record published
2026-06-17 04:26 UTCUpdated Record last modified

onionshare onionshare UPGRADE

Affected: >= 2.3 and < 2.5

Fixed in: 2.5

Safe to downgrade to: a release before 2.3

1. Check installed version

apt-cache policy onionshare || rpm -q onionshare || onionshare --version

2. UPGRADE to 2.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade onionshare

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade onionshare

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.3 (Debian / Ubuntu)

apt-cache madison onionshare sudo apt install onionshare=<VERSION_BEFORE_2.3> sudo apt-mark hold onionshare

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list onionshare sudo dnf downgrade onionshare-<VERSION_BEFORE_2.3> sudo dnf versionlock add onionshare

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2022-21693?

onionshare: upgrade to 2.5. Exact commands for each OS are on this page.

Is CVE-2022-21693 being exploited?

CVE-2022-21693 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-2022-21693 affect?

CVE-2022-21693 affects onionshare. Severity is medium (CVSS 6.3). 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 an adversary with a primitive that allows for filesystem access from the

How urgent is CVE-2022-21693?

Priority 39/100. No elevated risk signals yet.

Related CVEs

CVE-2022-21696 MEDIUM 4.3 UPGRADE OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat
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-2022-21692 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

References

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