CVE-2024-52791: medium-severity vulnerability in t2bot matrix-media-repo
Denial of service through memory exhaustion in Matrix Media Repo
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
t2bot · matrix-media-repoRelated CVEs — t2bot matrix-media-repo
In the same product, most dangerous first.
CVE-2024-36403MEDIUMDenial of service/high operating costs through unauthenticated downloads in Matrix Media RepoEPSS 0.7%CVE-2024-56515MEDIUMUntrusted file formats can be thumbnailed, invoking potentially further untrusted decoders in Matrix Media RepoEPSS 0.7%CVE-2024-52602MEDIUMServer-Side Request Forgery (SSRF) on redirects and federation in Matrix Media RepoEPSS 0.6%CVE-2024-36402MEDIUMUnauthenticated writes to the media repository allow planting of problematic content in Matrix Media RepoEPSS 0.6%