Feed/CVE-2026-59869
CVE-2026-59869HIGHCVSS 7.5

CVE-2026-59869

Published Jul 8, 2026·Updated Jul 20, 2026

NVD Description

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.

Affected Packages (1)

js-yamlNPM
From 3.0.0
Fixed in 3.15.0

CVSS Vector

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

References

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