EUVD-2021-0132

🗓️ 07 Oct 2025 00:30:54Reported by EUVDType

Matrix allows unauthorized access to room membership in versions 1.41.0 and prior; upgrade needed.

Reporter	Title	Published	Views	Family All 28
FreeBSD	py-matrix-synapse -- several vulnerabilities	31 Aug 202100:00	–	freebsd
AlpineLinux	CVE-2021-39164	31 Aug 202116:20	–	alpinelinux
Circl	CVE-2021-39164	31 Aug 202120:33	–	circl
CNNVD	Matrix 信息泄露漏洞	31 Aug 202100:00	–	cnnvd
CNVD	Matrix Information Breach Vulnerability	2 Sep 202100:00	–	cnvd
CVE	CVE-2021-39164	31 Aug 202116:20	–	cve
Cvelist	CVE-2021-39164 Improper authorisation of /members discloses room membership to non-members	31 Aug 202116:20	–	cvelist
Debian CVE	CVE-2021-39164	31 Aug 202116:20	–	debiancve
Fedora	[SECURITY] Fedora 35 Update: matrix-synapse-1.41.1-1.fc35	24 Sep 202120:41	–	fedora
Fedora	[SECURITY] Fedora 34 Update: matrix-synapse-1.41.1-1.fc34	8 Sep 202115:07	–	fedora

[
  {
    "enisaIdVendor": [
      {
        "id": "e0c85716-283d-3d50-b766-53fd23eabfb8",
        "vendor": {
          "name": "matrix-org"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "53385e85-573a-370a-b11e-e119c13f025e",
        "product": {
          "name": "synapse"
        },
        "product_version": "< 1.41.1"
      }
    ]
  }
]

Source	Link
github	www.github.com/matrix-org/synapse/security/advisories/GHSA-3x4c-pq33-4w3q
github	www.github.com/matrix-org/synapse/releases/tag/v1.41.1
github	www.github.com/matrix-org/synapse/commit/cb35df940a
lists	www.lists.fedoraproject.org/archives/list/[email protected]/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/
lists	www.lists.fedoraproject.org/archives/list/[email protected]/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/
nvd	www.nvd.nist.gov/vuln/detail/CVE-2021-39164
github	www.github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-425.yaml
suse	www.suse.com/security/cve/CVE-2021-39164.html
security	www.security.archlinux.org/CVE-2021-39164
lists	www.lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/

07 Oct 2025 00:30Current

4.1Medium risk

Vulners AI Score4.1

CVSS 3.13.1

CVSS 23.5

EPSS0.00271