js-yaml vulnerabilities
CVEs whose affected-version data names the js-yaml package (npm). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
6 CVEsRSS
CVE-2026-84375High· 7.5js-yaml is a JavaScript YAML parser and dumper
js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 until 3.15.2 and 4.3.2, maxTotalMergeKeys in lib/js-yaml/loader.js and lib/loader.js does not count empty mapping sources while processing the merge key <<. An attacker can alias…
GHSA-5p4m-2wfm-xmqjHigh· 7.5JS-YAML: Quadratic CPU consumption in !!omap resolution (3.x and 4.x) — CVE-2026-59870 fix not backported
JS-YAML: Quadratic CPU consumption in !!omap resolution (3.x and 4.x) — CVE-2026-59870 fix not backported
GHSA-pm4m-ph32-ghv5High· 7.5js-yaml: Exponential parsing time in flow collections leads to denial of service
js-yaml: Exponential parsing time in flow collections leads to denial of service
CVE-2026-59870Medium· 5.3js-yaml: Quadratic-complexity (O(n^2)) DoS via !!omap tag in YAML11_SCHEMA
js-yaml: Quadratic-complexity (O(n^2)) DoS via !!omap tag in YAML11_SCHEMA
CVE-2026-59869High· 7.5js-yaml is a JavaScript YAML parser and dumper
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 e…
CVE-2026-59868Medium· 5.3js-yaml is a JavaScript YAML parser and dumper
js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where e…