CVE-2021-37630: nextcloud circles

csirt@kutim:~/threat-intel/cve/CVE-2021-37630

CVSS 6.5 · Medium EPSS 1,2%

Kerentanan Authorization Bypass Through User-Controlled Key pada nextcloud circles. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any "Secret Circle" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue.

Rincian

Terbit di NVD: 7 September 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-639: Authorization Bypass Through User-Controlled Key
EPSS (30 hari): 1,2% peluang dieksploitasi; lebih tinggi dari 67,4% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
nextcloud	circles	Semua versi sebelum 0.19.5
nextcloud	circles	Versi 0.20.0 hingga sebelum 0.20.11
nextcloud	circles	Versi 0.21.0 hingga sebelum 0.21.4

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/nextcloud/circles/pull/768 patch · advisory pihak ketiga
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm advisory pihak ketiga
https://hackerone.com/reports/1257624 permissions required · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.