CVE-2026-59869Published
js-yaml: YAML merge-key chains can force quadratic CPU consumption
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-59869 · Microsoft / collected KEV context
cve-program · CVE-2026-59869
- https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m
- https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7
- https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4
- https://github.com/nodeca/js-yaml/releases/tag/3.15.0
- https://github.com/nodeca/js-yaml/releases/tag/4.3.0
euvd · EUVD-2026-42301
- https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m
- https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7
- https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4
- https://github.com/nodeca/js-yaml/releases/tag/3.15.0
- https://github.com/nodeca/js-yaml/releases/tag/4.3.0
nvd · CVE-2026-59869
- https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7
- https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4
- https://github.com/nodeca/js-yaml/releases/tag/3.15.0
- https://github.com/nodeca/js-yaml/releases/tag/4.3.0
- https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m
osv · GHSA-52cp-r559-cp3m
- https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m
- https://nvd.nist.gov/vuln/detail/CVE-2026-59869
- https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7
- https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4
- https://github.com/nodeca/js-yaml
- https://github.com/nodeca/js-yaml/releases/tag/3.15.0
- https://github.com/nodeca/js-yaml/releases/tag/4.3.0
Related operational evidence
Explicit CVE identifiers- Jira Software Data Center: DoS (Denial of Service) js-yaml Dependency (CVE-2026-59869) · Security advisory · 15 Sep 2026