Denial of service through memory exhaustion in Matrix Media Repo
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| t2bot | matrix-media-repo | affected |
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No data.
No data available yet.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-0098 | 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. |
Github GHSA |
GHSA-gp86-q8hg-fpxj | matrix-media-repo (MMR) allows a denial of service through memory exhaustion |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.787% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
T2bot
T2bot matrix-media-repo |
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| CPEs | cpe:2.3:a:t2bot:matrix-media-repo:*:*:*:*:*:*:*:* | |
| Vendors & Products |
T2bot
T2bot matrix-media-repo |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Denial of service through memory exhaustion in Matrix Media Repo | |
| Weaknesses | CWE-789 | |
| References |
| |
| Metrics |
cvssV3_1
|