| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/t2bot/matrix-media-repo | < 1.3.8 | 1.3.8 |
| matrix-media-repo | < 1.3.8 | 1.3.8 |
Matrix Media Repo (MMR) is vulnerable to server-side request forgery, serving content from a private network it can access, under certain conditions.
This is fixed in MMR v1.3.8.
Restricting which hosts MMR is allowed to contact via (local) firewall rules or a transparent proxy.
https://owasp.org/www-community/attacks/Server_Side_Request_Forgery https://learn.snyk.io/lesson/ssrf-server-side-request-forgery/ https://www.agwa.name/blog/post/preventing_server_side_request_forgery_in_golang
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