CVE-2026-31805: discourse

csirt@kutim:~/threat-intel/cve/CVE-2026-31805

CVSS 8.2 · High EPSS 0,39%

Kerentanan Improper Input Validation pada discourse. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass in the poll plugin allowed authenticated users to vote on, remove votes from, or toggle the open/closed status of polls they did not have access to. By passing post_id as an array (e.g. post_id[]=&post_id[]=), the authorization check resolves to the accessible post while the poll lookup resolves to a different post's poll. This affects the vote, remove_vote, and toggle_status endpoints in DiscoursePoll::PollsController. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

Rincian

Terbit di NVD: 20 Maret 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 8.2 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-20: Improper Input Validation
CWE-863: Incorrect Authorization
EPSS (30 hari): 0,39% peluang dieksploitasi; lebih tinggi dari 31,7% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
discourse	discourse	Versi 2026.1.0 hingga sebelum 2026.1.2
discourse	discourse	Versi 2026.2.0 hingga sebelum 2026.2.1
discourse	discourse	Versi 2026.3.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.