Security Advisories
CVEs affecting projects tracked on Release Alert, from NVD & OSV.
CVE-2026-59869
7.5
HIGHCVSS v3
Published
July 8, 2026
Affected
2 projects
Assigned by
GitHub
Severity scale
010
Description
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 each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.
NPM
nodeca/js-yaml
GitHubJavaScript YAML parser and dumper. Very fast.
GitHubJavaScript YAML parser and dumper. Very fast.>= 3.0.0, < 3.15.0, >= 4.0.0, < 4.3.0NVD