CVE-2026-53550

Katalog CVE

CVSS 5.3 · Medium EPSS 0,42%

Kerentanan Inefficient Algorithmic Complexity pada nodeca js-yaml. Skor CVSS 3.1 5.3 (Medium) menurut github.com.

Deskripsi (NVD)

js-yaml is a JavaScript YAML parser and dumper. Prior to 4.2.0 and 3.15.0, a crafted YAML document can trigger algorithmic CPU exhaustion in js-yaml merge-key processing (<<) by repeating the same alias many times in a merge sequence. This causes quadratic parse-time behavior relative to input size and can block a Node.js worker/event loop for seconds with a relatively small payload (tens of KB), resulting in denial of service. The issue is in merge handling inside lib/loader.js. This vulnerability is fixed in 4.2.0 and 3.15.0.

Rincian

Terbit di NVD

22 Juni 2026

Terakhir diubah

9 Juli 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-407: Inefficient Algorithmic Complexity

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/nodeca/js-yaml/security/advisories/GHSA-h67p-54hq-rp68 exploit · mitigasi · advisory vendor