CVE-2026-40612
jq: Stack overflow via unbounded recursion in jv_contains
- State
- Published
- Severity
- 5.4 Medium
- Published
- May 11, 2026
- Updated
- May 11, 2026
- Reserved
- Apr 14, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.4 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P | GitHub_M |
Weaknesses
- CWE-674 Uncontrolled Recursion
Affected Products
| Product | Versions |
|---|---|
jqjqlang |
|
References
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