CVE-2022-41904

Element iOS is an iOS Matrix client provided by Element. It is based on MatrixSDK. Prior to version 1.9.7, events encrypted using Megolm for which trust could not be established did not get decorated accordingly (with warning shields). Therefore a malicious homeserver could inject messages into the room without the user being alerted that the messages were not sent by a verified group member, even if the user has previously verified all group members. This issue has been patched in Element iOS 1.9.7. There are currently no known workarounds.

Scoring

Severity
MEDIUM
CVSS base score
6.4
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS probability
0.20%
CWE
CWE-357
Published
2022-11-11
Last modified
2026-03-13

Affected products

Weakness type

Related vulnerabilities

Markdown version · Browse all CVEs