CVE-2026-43896 MEDIUM

CVE-2026-43896: jq: Stack Overflow in Recursive Object Merge

Vendor Jqlang
Product jq
Weakness CWE-674
Published May 11, 2026
Last update May 12, 2026
View on NVD All CVEs

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

jq is a command-line JSON processor. In 1.8.1 and earlier, unbounded recursion in jv_object_merge_recursive() allows a crafted jq program to crash the process with a segfault. The function is reachable through the * operator when both operands are objects.

Key dates

02Disclosure timeline

May 11, 2026 CVE published
May 12, 2026 Record updated