medium5.5
CVE-2026-40612
jq is a command-line JSON processor.
Impact
jq is a command-line JSON processor. In 1.8.1 and earlier, jv_contains recurses into nested arrays/objects with no depth limit. With a sufficiently nested input structure (built programmatically with reduce, since the JSON parser caps at depth 10000), the C stack is exhausted.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Jqlang | Jq | through 1.8.1 |