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TI-2021-12418 Aliases CVE-2021-32750

De-anonymization via message

Priority LOW 32CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure, Cross-site scripting
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200 and CWE-79.

Summary

MuWire is a file publishing and networking tool that protects the identity of its users by using I2P technology. Users of MuWire desktop client prior to version 0.8.8 can be de-anonymized by an attacker who knows their full ID. An attacker could send a message with a subject line containing a URL with an HTML image tag and the MuWire client would try to fetch that image via clearnet, thus exposing the IP address of the user. The problem is fixed in MuWire 0.8.8. As a workaround, users can disable messaging functionality to prevent other users from sending them malicious messages.

Why it matters now

EPSS 0.00842 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed muwire (zlatinb): 0.8.8

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
zlatinbmuwirebefore 0.8.80.8.8Patch availableCNA
  • muwire Vendorzlatinb Affected before 0.8.8 Fixed in 0.8.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:muwire_project:muwire:*:*:*:*:*:*:*:*before 0.8.8VulnerableMuwire Project
  • cpe:2.3:a:muwire_project:muwire:*:*:*:*:*:*:*:* Versions before 0.8.8 Vulnerable ·Muwire Project

Remediation

  • Fix · CNA muwire (zlatinb) Fixed in 0.8.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-32750

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences