CVE-2026-59870

Publié : 8 juillet 2026

Modifié : 8 juillet 2026

Score CVSS

5.3

MEDIUM

Description détaillée

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.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Références et Patchs

https://github.com/nodeca/js-yaml/commit/39f3211a2f01b3c6982710cf21434ab7060acefe https://github.com/nodeca/js-yaml/releases/tag/5.2.1 https://github.com/nodeca/js-yaml/security/advisories/GHSA-724g-mxrg-4qvm https://github.com/nodeca/js-yaml/security/advisories/GHSA-724g-mxrg-4qvm

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