AUGUST 4, 2026
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Case File

CVE-2022-21689

HIGH · CVSS 7.5 EPSS 1.28% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2022-21689
Severity
HIGH
CVSS
7.5
EPSS
1.28%

Original NVD 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 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)