PT-2026-39709 · Jqlang · Jq

Published 2026-05-11 · Updated 2026-05-11 · CVE-2026-40612

Mitre

CVSS v4.0

6.8

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-40612

Affected Products

Jq

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-40612 · Security Note
• https://github.com/jqlang/jq/security/advisories/GHSA-r7m6-x9c7-h69j · Note