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JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases

🗓️ 15 Jun 2026 17:15:07Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 14 Views

Crafted YAML can cause quadratic CPU load in js-yaml merge handling by repeating the same alias.

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Detection
Refs
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16 Jun 202620:22
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15 Jun 202617:15
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OSV
CGA-HXP5-835R-FJV4
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GHSA-H67P-54HQ-RP68 JS-YAML: Quadratic-complexity DoS in merge key handling via repeated aliases
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16 Jun 202617:42
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MINI-8QMV-8F9F-5W8V
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