{"cve":"CVE-2024-52791","nvd":{"published":"2025-01-16T20:15:32.667","modified":"2026-06-17T08:07:38.180","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-789"],"references":["https://github.com/t2bot/matrix-media-repo/releases/tag/v1.3.8","https://github.com/t2bot/matrix-media-repo/security/advisories/GHSA-gp86-q8hg-fpxj"],"products":["t2bot:matrix-media-repo"],"source":"nvd","synced_at":"2026-10-19T21:58:20.756570362+00:00"},"epss":{"cve":"CVE-2024-52791","score":0.00787,"percentile":0.56169,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gp86-q8hg-fpxj","url":"https://osv.dev/vulnerability/GHSA-gp86-q8hg-fpxj","summary":"matrix-media-repo (MMR) allows a denial of service through memory exhaustion","modified":"2025-08-20T17:40:17Z","packages":[{"ecosystem":"Go","name":"github.com/t2bot/matrix-media-repo","purl":"pkg:golang/github.com/t2bot/matrix-media-repo","ranges":["<1.3.8"],"fixed":["1.3.8"]}]},{"id":"GO-2025-3398","url":"https://osv.dev/vulnerability/GO-2025-3398","summary":"matrix-media-repo (MMR) allows a denial of service through memory exhaustion in github.com/t2bot/matrix-media-repo","modified":"2026-03-03T04:56:11.870373Z","packages":[{"ecosystem":"Go","name":"github.com/t2bot/matrix-media-repo","purl":"pkg:golang/github.com/t2bot/matrix-media-repo","ranges":["<1.3.8"],"fixed":["1.3.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}