Vulnerability in T2bot Matrix-Media-Repo
CVE-2024-52791
Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR makes requests to other servers as part of normal operation, and these resource owners can return large amounts of JSON back to MMR for parsing. In parsing, MMR can consume large amounts of memory and exhaust available memory. This is fixed in MMR v1.3.8. Users are advised to upgrade. For users unable to upgrade; forward proxies can be configured to block requests to unsafe hosts. Alternatively, MMR processes can be configured with memory limits and auto-restart. Running multiple MMR processes concurrently can help ensure a restart does not overly impact users.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (53.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- T2bot Matrix-Media-Repo — versions < 1.3.8
Weakness classification (CWE)
References
- github.com/t2bot/matrix-media-repo/security/advisories/GHSA-gp86-q8hg-fpxj (Vendor Advisory)
- github.com/t2bot/matrix-media-repo/releases/tag/v1.3.8 (Release Notes)
Frequently asked questions
- What is CVE-2024-52791?
- CVE-2024-52791 is a medium-severity vulnerability in T2bot Matrix-Media-Repo, classified under CWE-789. CVSS score: 5.3/10. Published 2025-01-16.
- How severe is CVE-2024-52791?
- Medium severity. CVSS v3 base score is 5.3 out of 10.