https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T23:13:02.342528+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cnvd-2021-70124 cnvd-2021-70124 2026-10-05T23:13:02.352234+00:00 cnvd-2021-70124 https://cve.radiocsirt.org/vuln/euvd-2026-30442 EUVD-2026-30442 2026-10-05T23:13:02.352274+00:00 EUVD-2026-30442 https://cve.radiocsirt.org/vuln/fkie_cve-2021-39164 fkie_cve-2021-39164 2026-10-05T23:13:02.352289+00:00

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter.

 https://cve.radiocsirt.org/vuln/ghsa-3x4c-pq33-4w3q GHSA-3x4c-pq33-4w3q — Improper authorisation of members discloses room membership to non-members 2026-10-05T23:13:02.352325+00:00

Affected: PyPI: matrix-synapse

### Impact Unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room.

### Patches Server administrators should upgrade to 1.41.1 or later.

### Workarounds Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the following endpoints: * `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter * `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter

### References n/a

### For more information If you have any questions or comments about this advisory, e-mail us at security@matrix.org.

 https://cve.radiocsirt.org/vuln/gsd-2021-39164 gsd-2021-39164 2026-10-05T23:13:02.352363+00:00 gsd-2021-39164 https://cve.radiocsirt.org/vuln/opensuse-su-2024:11041-1 openSUSE-SU-2024:11041-1 — matrix-synapse-1.43.0-1.1 on GA media 2026-10-05T23:13:02.352377+00:00

matrix-synapse-1.43.0-1.1 on GA media

 https://cve.radiocsirt.org/vuln/pysec-2021-425 PYSEC-2021-425 2026-10-05T23:13:02.352399+00:00

Affected: PyPI: matrix-synapse

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter.

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2021-39164 UBUNTU-CVE-2021-39164 2026-10-05T23:13:02.352420+00:00

Affected: Ubuntu:Pro:18.04:LTS: matrix-synapse, Ubuntu:Pro:20.04:LTS: matrix-synapse, Ubuntu:Pro:22.04:LTS: matrix-synapse

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter.