Description
matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. A malicious homeserver could manipulate a user's account data to cause the client to enable URL previews in end-to-end encrypted rooms, in which case any URLs in encrypted messages would be sent to the server. This was patched in matrix-react-sdk 3.105.0. Deployments that trust their homeservers, as well as closed federations of trusted servers, are not affected. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| matrix-org | matrix-react-sdk | < 3.105.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | element-web +1 | 1.11.73-1.1 | openSUSE-SU-2024:14273-1, openSUSE-SU-2024:14242-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | matrix-react-sdk | < 3.105.1 | 3.105.1 | GHSA-f83w-wqhc-cfp4 |
Advisories 2
- openSUSE-SU-2024:14273-1 element-desktop-1.11.73-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14242-1 element-web-1.11.73-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026