CVE-2026-42181 — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2026-42181

CVSS 6.5 · Medium EPSS 0,35%

Kerentanan Server-Side Request Forgery (SSRF). Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

Lemmy is a link aggregator and forum for the fediverse. Prior to version 0.19.18, Lemmy fetches metadata for user-supplied post URLs and, under the default StoreLinkPreviews image mode, downloads the preview image through local pict-rs. While the top-level page URL is checked against internal IP ranges, the extracted og:image URL is not subject to the same restriction. As a result, an authenticated low-privileged user can submit an attacker-controlled public page whose Open Graph image points to an internal image endpoint. Lemmy will fetch that internal image server-side and store a local thumbnail that can then be served back to users. This issue has been patched in version 0.19.18.

Rincian

Terbit di NVD: 8 Mei 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Deferred
CVSS 3.1: 6.5 (Medium), sumber github.com
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-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,35% peluang dieksploitasi; lebih tinggi dari 27,2% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

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.