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.
| Vendor | Product | Versions |
|---|---|---|
| nodeca | js-yaml | >= 3.0.0, < 3.15.0, >= 4.0.0, < 4.3.0 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| ibm | app connect enterprise | cert_advisory | 90% |
Updated affected versions to include 'up to 3.14.x' and 'up to 4.2.x', and clarified that no exploit exists.
Initial creation