PT-2026-56490
CVE-2026-59869
·
Published
2026-07-08
·
Updated
2026-10-30
Description by
CVSS 3.1
7.5
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
js-yaml versions 3.0.0 through 3.14.x
js-yaml versions 4.0.0 through 4.2.x
Description
js-yaml can consume quadratic CPU time when parsing a document that grows linearly in size. This occurs when a chain of mappings utilizes merge keys, where each subsequent mapping merges the previous one.
Recommendations
Update js-yaml versions 3.0.0 through 3.14.x to version 3.15.0.
Update js-yaml versions 4.0.0 through 4.2.x to version 4.3.0.
Exploitability
Exploit
Fix
Impacts
Vendors
Affected products
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