tocsin

CVE-2026-53550

1 advisory.

npm/js-yaml CVE-2026-53550: medium 5.3, EPSS 0.41%

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

Action: Upgrade js-yaml to 3.15.0 or later.

npm i js-yaml@4.2.0
npm i js-yaml@3.15.0

Affected

introducedfixedlast affected
4.0.04.2.0-
03.15.0-

Fixed versions

4.2.03.15.0

Sources

CVE-2026-53550 · published · modified · JSON