CVE-2026-21887: citeum opencti

csirt@kutim:~/threat-intel/cve/CVE-2026-21887

CVSS 7.7 · High EPSS 0,22%

Kerentanan Server-Side Request Forgery (SSRF) pada citeum opencti. Skor CVSS 3.1 7.7 (High) menurut github.com.

Deskripsi (NVD)

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to 6.8.16, the OpenCTI platform’s data ingestion feature accepts user-supplied URLs without validation and uses the Axios HTTP client with its default configuration (allowAbsoluteUrls: true). This allows attackers to craft requests to arbitrary endpoints, including internal services, because Axios will accept and process absolute URLs. This results in a semi-blind SSRF, as responses may not be fully visible but can still impact internal systems. This vulnerability is fixed in 6.8.16.

Rincian

Terbit di NVD: 12 Maret 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 7.7 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,22% peluang dieksploitasi; lebih tinggi dari 11,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
citeum	opencti	Semua versi sebelum 6.8.16

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/OpenCTI-Platform/opencti/security/advisories/GHSA-ffm6-vvph-g5f5 advisory vendor

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.