js-yaml: YAML merge-key chains can force quadratic CPU consumption

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-59868 · Microsoft / collected KEV context

EUVD-2026-42302

GHSA-g796-fgmg-93mv

cve-program · CVE-2026-59868

• https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv
• https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1
• https://github.com/nodeca/js-yaml/releases/tag/5.2.0

euvd · EUVD-2026-42302

• https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv
• https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1
• https://github.com/nodeca/js-yaml/releases/tag/5.2.0

nvd · CVE-2026-59868

• https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1
• https://github.com/nodeca/js-yaml/releases/tag/5.2.0
• https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv

osv · GHSA-g796-fgmg-93mv

• https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv
• https://nvd.nist.gov/vuln/detail/CVE-2026-59868
• https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1
• https://github.com/nodeca/js-yaml
• https://github.com/nodeca/js-yaml/releases/tag/5.2.0

No related operational record is retained in the current change model.