CVE-2026-59869

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.

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Produits concernés

• nodeca js-yaml

Scores CVSS

Faiblesses (CWE)

• CWE-407

Références

• https://github.com/nodeca/js-yaml/commit/24f13e79ee1343a7e30bd6f6c9d9cdbf0ac9b2b7 Patch
• https://github.com/nodeca/js-yaml/commit/59423c6f8cdc78742ac00e25a4dd39ef16b702e4 Patch
• https://github.com/nodeca/js-yaml/releases/tag/3.15.0 Release Notes
• https://github.com/nodeca/js-yaml/releases/tag/4.3.0 Release Notes
• https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m ExploitVendor Advisory
• https://github.com/nodeca/js-yaml/security/advisories/GHSA-52cp-r559-cp3m ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories