CVE-2026-43896

Name: CVE-2026-43896
Creator: NVD / NIST
Published: 2026-05-11T18:16:37.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.15%

Last modified Jun 17, 2026

CVE-2026-43896 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.15% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.15%

4.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-674

Affected Software

Vendor	Product	Versions
Jqlang	Jq	<= 1.8.1

References

https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846Exploit, Vendor Advisory
https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846Exploit, Vendor Advisory

Timeline

Published: May 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-43896?

How severe is CVE-2026-43896?

CVE-2026-43896 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.15% probability of exploitation in the next 30 days.

How do I fix CVE-2026-43896?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-43896?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST