What is CVE-2026-40612?

CVE-2026-40612 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. jq: Stack overflow via unbounded recursion in jv_contains

Which CVE IDs does CVE-2026-40612 cover?

CVE-2026-40612 covers the following CVE IDs: CVE-2026-40612. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-40612?

CVE-2026-40612 affects 2 products, including: azl3 jq 1.7.1-5 on Azure Linux 3.0; azl3 jq 1.7.1-6 on Azure Linux 3.0.

CVE-2026-40612Medium

jq: Stack overflow via unbounded recursion in jv_contains

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-40612 →

🎯 Affected products2

azl3 jq 1.7.1-5 on Azure Linux 3.0
azl3 jq 1.7.1-6 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.7.1-6

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40612
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade