CVE-2026-40036: ryandfir unfurl

csirt@kutim:~/threat-intel/cve/CVE-2026-40036

CVSS 7.5 · High EPSS 0,79%

Kerentanan Improper Handling of Highly Compressed Data (Data Amplification) pada ryandfir unfurl. Skor CVSS 3.1 7.5 (High) menurut vulncheck.com.

Deskripsi (NVD)

Unfurl before 2026.04 contains an unbounded zlib decompression vulnerability in parse_compressed.py that allows remote attackers to cause denial of service. Attackers can submit highly compressed payloads via URL parameters to the /json/visjs endpoint that expand to gigabytes, exhausting server memory and crashing the service.

Rincian

Terbit di NVD: 8 April 2026
Terakhir diubah: 8 Oktober 2026
Status NVD: Analyzed
CVSS 3.1: 7.5 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
CWE-770: Allocation of Resources Without Limits or Throttling
EPSS (30 hari): 0,79% peluang dieksploitasi; lebih tinggi dari 55,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
ryandfir	unfurl	Semua versi sebelum 2026.04

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/obsidianforensics/unfurl/security/advisories/GHSA-h5qv-qjv4-pc5m exploit · advisory vendor
https://www.vulncheck.com/advisories/dfir-unfurl-denial-of-service-via-unbounded-zlib-decompression advisory pihak ketiga
https://github.com/obsidianforensics/unfurl/releases/tag/v2026.04 release notes

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 9 Okt 2026, 06:25 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.