CVE-2026-43896 Details
Description
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.
A denial-of-service vulnerability has been identified in jq, a command-line JSON processor, in versions through 1.8.1. The issue arises from unbounded recursion in the 'jv_object_merge_recursive()' function, which merges nested objects without a depth limit. This flaw can be exploited by crafting a jq program that causes the process to crash with a segmentation fault. The vulnerability is triggered using the '*' operator when both operands are objects, leading to a stack overflow and process termination.
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CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846 | CISA-ADP | ExploitVendor Advisory |
| https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846 | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-674 | Uncontrolled Recursion | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| jqlang jq | <= 1.8.1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 12, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | New CVE Received | [email protected] |