What is CVE-2026-59869?

CVE-2026-59869 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. js-yaml: YAML merge-key chains can force quadratic CPU consumption

Which CVE IDs does CVE-2026-59869 cover?

CVE-2026-59869 covers the following CVE IDs: CVE-2026-59869. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-59869?

CVE-2026-59869 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2026-59869HighCVSS 7.5

js-yaml: YAML merge-key chains can force quadratic CPU consumption

Vendor

Microsoft Security Response Center (MSRC)

Published

July 11, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-59869 →