CVE-2026-43896

jq: Stack Overflow in Recursive Object Merge

Published May 11, 2026 CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4599-1 jq security update
Debian DLA Debian DLA DLA-4662-1 jq security update
Debian DSA Debian DSA DSA-6416-1 jq security update
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Jqlang
Jqlang jq
Vendors & Products Jqlang
Jqlang jq
Type Values Removed Values Added
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.
Title jq: Stack Overflow in Recursive Object Merge
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 12, 2026, 4:15 PM
Reserved
May 4, 2026, 3:17 PM
Status
Analyzed
Published
May 11, 2026, 6:16 PM
Modified
Oct 26, 2026, 6:10 PM
Severity
Moderate
Public date
May 11, 2026, 5:24 PM