Severity
- CVSS 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected versions
Repository
| Affected commits | Fixed by commit |
|---|---|
| GIT github.com/matrix-org/matrix-js-sdk ↗ | |
| All commits before e878b7683b1d7b47eca10d8dfc4510f7826679b3 | e878b7683b1d7b47eca10d8dfc4510f7826679b3 |
Also listed as affected (57)
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Description
A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the homeserver to decrypt end-to-end encrypted messages sent by affected clients.