CVE-2026-43929

Katalog CVE

CVSS 8.2 · High EPSS 0,36%

Kerentanan Incomplete List of Disallowed Inputs. Skor CVSS 3.1 8.2 (High) menurut github.com.

Deskripsi (NVD)

ssrfcheck is a library that checks if a string contains a potential SSRF attack. In 1.3.0 and earlier, ssrfcheck fails to block Server-Side Request Forgery attacks when the target private IP address is encoded as an IPv4-mapped IPv6 address (e.g. http://[::ffff:127.0.0.1]/). The WHATWG URL parser built into Node.js silently normalizes the IPv4 notation inside the brackets to compressed hex form ([::ffff:7f00:1]) before the library's private-IP regex ever runs. The regex was written to match dot-notation only and therefore never matches any real input — all seven IANA private IPv4 ranges, including the AWS/GCP/Azure metadata address 169.254.169.254, are bypassed. Any application using isSSRFSafeURL() to guard HTTP requests made with user-supplied URLs is fully exposed to SSRF.

Rincian

Terbit di NVD

12 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-184: Incomplete List of Disallowed Inputs
CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,4% 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/felippe-regazio/ssrfcheck/security/advisories/GHSA-j4rj-2jr5-m439