CVE-2022-41904
mediumpriority · track · 26EPSS 0.005 · 40 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-41904/cnnvd
- https://github.com/vector-im/element-ios/releases/tag/v1.9.7cnnvd
- https://github.com/vector-im/element-ios/security/advisories/GHSA-fm8m-99j7-323gcnnvd
- https://github.com/vector-im/element-ios/releases/tag/v1.9.7enisa_euvd
- https://github.com/vector-im/element-ios/security/advisories/GHSA-fm8m-99j7-323genisa_euvd
- https://github.com/vector-im/element-ios/releases/tag/v1.9.7Release NotesThird Party Advisorynvd
- https://github.com/vector-im/element-ios/security/advisories/GHSA-fm8m-99j7-323gThird Party Advisorynvd
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