How severe is CVE-2024-36402?

CVE-2024-36402 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2024-36402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-36402?

CVE-2024-36402 affects T2bot Matrix-media-repo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-36402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-36402 have an EU (EUVD) identifier?

Yes. CVE-2024-36402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0094.

When was CVE-2024-36402 published?

CVE-2024-36402 was published on 2025-01-16 and last updated on 2026-06-17.

CVE-2024-36402

CVE-2024-36402 is a medium-severity vulnerability in T2bot Matrix-media-repo with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0094
Weakness: CWE-287
Affected product: T2bot Matrix-media-repo
Published: 2025-01-16
Last modified: 2026-06-17

Description

Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. MMR 1.3.5 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector. Though extremely limited, server operators can use more strict rate limits based on IP address as a partial workaround.

Frequently asked questions

What is CVE-2024-36402?: Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. MMR 1.3.5 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector. Though extremely limited, server operators can use more strict rate limits based on IP address as a partial workaround.
How severe is CVE-2024-36402?: CVE-2024-36402 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2024-36402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-36402?: CVE-2024-36402 affects T2bot Matrix-media-repo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-36402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-36402 have an EU (EUVD) identifier?: Yes. CVE-2024-36402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0094.
When was CVE-2024-36402 published?: CVE-2024-36402 was published on 2025-01-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:t2bot:matrix-media-repo:*:*:*:*:*:*:*:*

More vulnerabilities in T2bot Matrix-media-repo

CVE-2024-56515 — Medium (CVSS 6.8): Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. If SVG or JPEGXL…
CVE-2024-52791 — Medium (CVSS 5.3): Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR makes requests to…
CVE-2024-36403 — Medium (CVSS 5.3): Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5…
CVE-2024-52602 — Medium (CVSS 5.0): Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. Matrix Media Repo (MMR)…

All CVEs affecting T2bot Matrix-media-repo →

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