CVE-2026-59869 (GCVE-0-2026-59869)
Vulnerability from cvelistv5
Published
2026-07-08 15:15
Modified
2026-07-09 15:14
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-407 - Inefficient Algorithmic Complexity
Summary
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.
References
Impacted products
Vendor Product Version
nodeca js-yaml Version: >= 3.0.0, < 3.15.0
Version: >= 4.0.0, < 4.3.0
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