CVE-2026-46431

Katalog CVE

CVSS 4.3 · Medium EPSS 0,31%

Kerentanan Permissive Cross-domain Security Policy with Untrusted Domains. Skor CVSS 3.1 4.3 (Medium) menurut github.com.

Deskripsi (NVD)

Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, the SSE event server's Access-Control-Allow-Origin response header was hardcoded to the wildcard * regardless of the caller's Origin. Because EventSource does not preflight and does not send cookies, the wildcard is sufficient to let any third-party page the developer visits open a cross-origin EventSource to the SSE port and read the live filename stream from JavaScript. This vulnerability is fixed in 1.17.7.

Rincian

Terbit di NVD

26 Mei 2026

Terakhir diubah

24 Juli 2026

Status NVD

Deferred

CVSS 3.1

4.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-942: Permissive Cross-domain Security Policy with Untrusted Domains

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 21,6% 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

• https://github.com/xyproto/algernon/security/advisories/GHSA-hw27-4v2q-5qff