PT-2026-56491 · Nodeca · Js-Yaml

Publicado 2026-07-08 · Atualizado 2026-07-08 · CVE-2026-59870

NVD

CVSS v3.1

5.3

Média

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.1, YAML11 SCHEMA support for the !!omap tag in src/tag/sequence/omap.ts uses omapTag.addItem() to perform a linear duplicate-key scan on every insertion, causing O(n^2) CPU consumption when yaml.load() parses a crafted ordered-map document. This issue is fixed in version 5.2.1.

Exploit

Correção

Enumeração de Fraquezas

CWE-407

Identificadores relacionados

CVE-2026-59870

Produtos afetados

Js-Yaml

Referências · 4

• 🔥 https://github.com/nodeca/js-yaml/security/advisories/GHSA-724g-mxrg-4qvm · Exploit
• https://github.com/nodeca/js-yaml/releases/tag/5.2.1 · Nota
• https://github.com/nodeca/js-yaml/commit/39f3211a2f01b3c6982710cf21434ab7060acefe · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-59870 · Nota de Segurança