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 the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.
CVE-2022-21689
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.4%, top 31% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 69.1%
- KEV
- Not listed
Published
January 18, 2022
Last Modified
November 21, 2024
References (4)
- security-advisories@githubhttps://github.com/onionshare/onionshare/releases/tag/v2.5
- security-advisories@githubhttps://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc
- af854a3a-2127-422b-91ae-364da2661108https://github.com/onionshare/onionshare/releases/tag/v2.5
- af854a3a-2127-422b-91ae-364da2661108https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | onionshare (0.9.2-1ubuntu0.1~esm1) @ bionic | 2026-05-26 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| onionshare-cli | 2.3, 2.3.1, 2.3.2, 2.3.3 | 2.5 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 14× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 102 total refreshes for this CVE.
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2022-21689?
When was CVE-2022-21689 disclosed?
Is CVE-2022-21689 actively exploited?
What is the CVSS score of CVE-2022-21689?
How do I remediate CVE-2022-21689?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-21689
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