CVE-2024-52602 Server-Side Request Forgery (SSRF) on redirects and federation in Matrix Media Repo

What is CVE-2024-52602?

CVE-2024-52602 is a medium-severity vulnerability in t2bot matrix-media-repo, published on 16 Jan 2025.

Official description

Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. 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. Users are advised to upgrade. Restricting which hosts MMR is allowed to contact via (local) firewall rules or a transparent proxy and may provide a workaround for users unable to upgrade.

Weakness: CWE-918

Which versions are affected by CVE-2024-52602?

3 open source packages ship an affected version, including github.com/t2bot/matrix-media-repo. It affects 1 product.

Products include T2bot Matrix-Media-Repo.

How do I fix CVE-2024-52602?

Upgrade github.com/t2bot/matrix-media-repo to 1.3.8 or later.

Is CVE-2024-52602 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-52602 exists.

Other vulnerabilities in t2bot matrix-media-repo

• CVE-2024-56515 Untrusted file formats can be thumbnailed, invoking potentially further untrusted decoders in Matrix Media Repo Medium 6.8
• CVE-2024-36402 Unauthenticated writes to the media repository allow planting of problematic content in Matrix Media Repo Medium 5.3
• CVE-2024-36403 Denial of service/high operating costs through unauthenticated downloads in Matrix Media Repo Medium 5.3
• CVE-2024-52791 Denial of service through memory exhaustion in Matrix Media Repo Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r6jg-jfv6-2fjv, GO-2025-3399.