Vulnerabilities in pkg:golang/github.com/t2bot/matrix-media-repo

PACKAGE
Advisory Identifier: GHSA-8vmr-h7h5-cqhg
Advisory Summary

CVE-2024-36402 is a MODERATE (CVSS 5.3) matrix-media-repo (mmr) allows unauthenticated writes vulnerability (CWE-287: Improper Authentication) affecting Github.com/t2bot/matrix media repo libraries in the Go ecosystem. The issue involves matrix-media-repo (mmr) allows unauthenticated writes to the media repository, which may allow planting of problematic content. Remediation is available by upgrading affected packages to version 1.3.5.

5 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/t2bot/matrix-media-repo

5 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/t2bot/matrix-media-repo. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-8vmr-h7h5-cqhg CVE-2024-36402 MODERATE matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content
GHSA-rcxc-wjgw-579r CVE-2024-56515 MODERATE Matrix Media Repo (MMR) allows untrusted file formats can be thumbnailed, invoking potentially further untrusted decoders
GHSA-gp86-q8hg-fpxj CVE-2024-52791 MODERATE matrix-media-repo (MMR) allows a denial of service through memory exhaustion
GHSA-r6jg-jfv6-2fjv CVE-2024-52602 MODERATE Matrix Media Repo (MMR) allows Server-Side Request Forgery (SSRF) on redirects and federation
GHSA-vc2m-hw89-qjxf CVE-2024-36403 MODERATE matrix-media-repo (MMR) allows denial of service/high operating costs through unauthenticated downloads

CVE-2024-36402 at a Glance

CVE Identifier CVE-2024-36402
GHSA Identifier GHSA-8vmr-h7h5-cqhg
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-287: Improper Authentication
Affected Product Github.com/t2bot/matrix media repo
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2024-36402

To remediate this vulnerability, upgrade all affected Github.com/t2bot/matrix media repo dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/t2bot/matrix-media-repo fixed: 1.3.5
Upgrade github.com/t2bot/matrix-media-repo to 1.3.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/t2bot/matrix-media-repo

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-36402, inspect your project dependencies for Github.com/t2bot/matrix media repo:

inspect dependencies for github.com/t2bot/matrix-media-repo

Analyze the terminal output to locate any version of Github.com/t2bot/matrix media repo in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.3.5), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Github.com/t2bot/matrix media repo, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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

CVE-2024-36402 Affected Github.com/t2bot/matrix media repo Versions

1 component(s)
Fixed Versions:
1.3.5
Product / Package Ecosystem Affected Versions Fixed Version
github.com/t2bot/matrix-media-repo
Go
< 1.3.5
1.3.5

References

Frequently Asked Questions

What is CVE-2024-36402?
CVE-2024-36402 is a security vulnerability in Github.com/t2bot/matrix media repo involving matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content under CWE-287: Improper Authentication.
Which Github.com/t2bot/matrix media repo versions are affected?
Affected versions include releases prior to 1.3.5 across affected packages: github.com/t2bot/matrix-media-repo.
What version fixes CVE-2024-36402?
Upgrading to 1.3.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/t2bot/matrix-media-repo affected?
Yes, github.com/t2bot/matrix-media-repo is affected in releases prior to 1.3.5. Upgrade your dependency to 1.3.5 or later.
What is the CVSS score of CVE-2024-36402?
CVE-2024-36402 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2024-36402?
CVE-2024-36402 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Go dependencies for CVE-2024-36402?
Run the dependency tree command: 'inspect dependencies for github.com/t2bot/matrix-media-repo'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8vmr-h7h5-cqhg",
  "modified" : "2025-08-20T19:13:42Z",
  "published" : "2025-01-16T19:05:01Z",
  "aliases" : [ "CVE-2024-36402" ],
  "summary" : "matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content",
  "details" : "### Impact\n\nMMR 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.\n\n### Patches\n\nMMR 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.\n\n### Workarounds\n\nThough extremely limited, server operators can use more strict rate limits based on IP address.\n\n### References\n\nhttps://github.com/matrix-org/matrix-spec-proposals/pull/3916",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/t2bot/matrix-media-repo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.3.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/t2bot/matrix-media-repo/security/advisories/GHSA-8vmr-h7h5-cqhg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-36402"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/matrix-org/matrix-spec-proposals/pull/3916"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/t2bot/matrix-media-repo"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2025-3397"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-16T19:05:01Z",
    "nvd_published_at" : "2025-01-16T20:15:32Z"
  }
}