CVE-2024-36402

mediumpriority · track · 21EPSS 0.006 · 47 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.56% (47th) EPSS
CVSS 5.3 · medium
Is it mine?
3 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedgovulncheck-vulndb-0.0.20250128T150132-150000.1.29.1.noarch as component of SUSE Linux Enterprise Module for Package Hub 15 SP6suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedgovulncheck-vulndb-0.0.20250128T150132-150000.1.29.1.noarch as component of openSUSE Leap 15.6suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

02

cvss

Technical severity, 0–10. One row per scoring source.

5.3
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · security-advisories@github.comexploitability 3.9 · impact 1.4
v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · OSV
v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287US
05

affected products (3)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • SUSE-SU-2025:0297-1Security update for govulncheck-vulndb2025-01-30csaf · suse_csafDE

    Security update for govulncheck-vulndb

  • GHSA-8vmr-h7h5-cqhgmatrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content2025-01-16ghsa · osvUS

    ### Impact 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. ### Patches 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. ### Workarounds Though extremely limited, server operators can use more strict rate limits based on IP address. ### References https://github.com/matrix-org/matrix-spec-proposals/pull/3916

  • GO-2025-3397matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content in github.com/t2bot/matrix-media-repo2025-01-16vendor · osvUS

    matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content in github.com/t2bot/matrix-media-repo

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvnvdsuse_csafNVDCVE.orgMITRE
published 2025-01-16modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

scry

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