CVE-2026-86408

Katalog CVE

CVSS 6.5 · Medium EPSS 0,34%

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

Deskripsi (NVD)

Affected versions of MISP do not enforce parent-event visibility when serving cryptographic keys through CryptographicKeysController::view(). The vulnerable handler queried CryptographicKey directly using the supplied key ID and selected sensitive fields such as: * type * key_data * fingerprint but did not fetch or authorize the associated parent event first. The upstream commit explicitly states that cryptographicKeys/view could return a protected event’s signing key to any authenticated user. The fix adds parent_id and parent_type to the lookup and then enforces authorization through the associated event using fetchSimpleEvent($user, parent_id). If the parent is not an Event, access is limited to site administrators. Version affected: ≤2.5.45

Rincian

Terbit di NVD

7 September 2026

Terakhir diubah

9 September 2026

Status NVD

Analyzed

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
CWE-862: Missing Authorization

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/MISP/MISP/commit/2edde619b patch