CVE-2026-70617

Katalog CVE

CVSS 8.1 · High EPSS 0,41%

Kerentanan Missing Authorization. Skor CVSS 3.1 8.1 (High) menurut vulncheck.com.

Deskripsi (NVD)

Spacebar Server before commit dcfd910 contains a missing authorization vulnerability that allows any authenticated attacker to add themselves to arbitrary group DM channels by sending a PUT request to the channels recipient endpoint without membership verification. Attackers can exploit the unguarded PUT /channels/{channel_id}/recipients/{user_id} handler to join private group DMs, read complete message history, post messages as a participant, and force-add third-party users without their consent.

Rincian

Terbit di NVD

5 Agustus 2026

Terakhir diubah

16 September 2026

Status NVD

Deferred

CVSS 3.1

8.1 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-862: Missing Authorization

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/spacebarchat/server/commit/dcfd91035e3da42abf5f32d8d86a35219225b3d4
• https://github.com/spacebarchat/server/security/advisories/GHSA-g38j-78fh-jm74
• https://www.vulncheck.com/advisories/spacebar-server-missing-authorization-via-group-dm-recipient-endpoint