CVE-2026-40612
5.5
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2026-40612
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/jq—no fix listed
Is CVE-2026-40612 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |