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TI-2022-20245 Aliases CVE-2022-41904

Element iOS is vulnerable due to missing decoration for events decrypted with untrusted Megolm sessions

Priority LOW 29CWE-357Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00465 40th percentileScored 2026-11-07
Fix Fixed element-ios (vector-im): 1.9.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vector-imelement-iosbefore 1.9.71.9.7Patch availableCNA
  • element-ios Vendorvector-im Affected before 1.9.7 Fixed in 1.9.7 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:element:element:*:*:*:*:*:iphone_os:*:*before 1.9.7Vulnerableelement-hq
  • cpe:2.3:a:element:element:*:*:*:*:*:iphone_os:*:* Versions before 1.9.7 Vulnerable ·element-hq

Remediation

  • Fix · CNA element-ios (vector-im) Fixed in 1.9.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-41904

References

Advisory 2

  • TI-2024-17222 Element Android Intent Redirection CVSS 3.1HIGH 8.4
  • TI-2025-20415 Element Android PIN autologout bypass CVSS 3.1MEDIUM 5.1
  • TI-2024-17223 Element Android can be asked to share internal files. CVSS 3.1MEDIUM 4.0

Sources

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