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Public proof of conceptFix available

CVE-2022-21690

A public proof of concept exists; no exploitation attested.

  • Published2022-01-18
  • Fixed in2.5
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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 path parameter of the requested URL is not sanitized before being passed to the QT frontend. This path is used in all components for displaying the server access history. This leads to a rendered HTML4 Subset (QT RichText editor) in the Onionshare frontend.

Timeline

dates in UTC
  1. 2022-01-1823:15CVE publishedNVD

Versions per branch

NVD · OSV
Onionshare
BranchAffectedFixed in
2.5< 2.52.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • onionshare
    Affected
    • = < 2.5no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-01-18

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • onionshareDebian:14all versions · fixed in 2.5-1
  • onionshareDebian:13all versions · fixed in 2.5-1
  • onionshareDebian:12all versions · fixed in 2.5-1
  • python-onionshareopenSUSE:Tumbleweedall versions · fixed in 2.5-1.1
  • python3-onionshareopenSUSE:Tumbleweedall versions · fixed in 2.6-4.1

Vendor advisories

Full record on NVD

Fix

  1. Update Onionshare to 2.5

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2025-04-22
  • CNACVSS 3.18.7known since 2026-10-23
  • NVDCVSS 3.15.4read 2026-10-23
  • NVDCVSS 2.03.5read 2026-10-23
  • CNAweakness (CWE)CWE-79known since 2026-10-23
  • NVDweakness (CWE)CWE-79read 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-11-09
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2022-01-19

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Published
2022-01-18
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-ch22-x2v3-v6vq

Frequently asked questions

What is CVE-2022-21690?

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 path parameter of the requested URL is not sanitized before being passed to the QT frontend. This path is used in all components for displaying the server access history. This leads to a rendered HTML4 Subset (QT RichText editor) in the Onionshare frontend.

Is CVE-2022-21690 actively exploited?

A proof-of-concept exploit exists for CVE-2022-21690, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2022-21690?

CVE-2022-21690 has a CVSS v3 base score of 5.4 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

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Sources for this record