CVE-2022-39252
matrix-sdk Impersonation of room keys
6.5
MEDIUM
CVSS 3.1
EPSS 0.48%
Description
When the user receives a forwarded room key, the software accepts it without checking who the room key came from. This allows homeservers to try to insert room keys of questionable validity, potentially mounting an impersonation attack.
How to fix CVE-2022-39252
To remediate CVE-2022-39252, upgrade the affected package to a fixed version below.
- crates.io/matrix-sdk-crypto—upgrade to 0.6.0 or later
- —upgrade to 0.6.0 or later
Is CVE-2022-39252 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.6.0
- >= 0.0.0-0, < 0.6.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |