CVE-2024-52791 - CVE House
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Status published Medium CVE-2024-52791

Denial of service through memory exhaustion in Matrix Media Repo

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2024-36403
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CVE-2024-36402
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Affected Vendor

Affected Software

matrix-media-repo
Vulnerable Versions:
< 1.3.8

Timeline

Official Publish: January 16th, 2025
Last Modified: February 12th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

CWE-789

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.