Uncontrolled Recursion in jq - CVE-2026-44777

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Main Vulnerability Database Vulnerabilities #VU144356

Uncontrolled Recursion in jq - CVE-2026-44777

Published: August 19, 2026


Vulnerability identifier: #VU144356
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44777
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled recursion in jq module loader when processing mutually including modules through the -L / include mechanism. A remote attacker can provide a valid pair of mutually including modules to cause a denial of service.

Exploitation requires jq to run against attacker-influenced programs or attacker-influenced module search paths.


Affected software

jq
Debian Linux
openEuler
Anolis OS
Fedora
LANTIME Operating System Firmware (LTOS)
jq (Debian package)
jq-debugsource
jq-help
jq-devel
jq-debuginfo
jq
jq-doc

How to mitigate CVE-2026-44777

Install security update from vendor's website.

jq - update to 1.8.2
LANTIME Operating System Firmware (LTOS) - update to 7.10.013
jq (Debian package) - update to 1.7.1-6+deb13u3
jq-debugsource - update to 1.8.0-4
jq-help - update to 1.8.0-4
jq-devel - update to 1.8.0-4
jq-debuginfo - update to 1.8.0-4
jq - update to 1.8.0-4
jq-doc - update to 1.8.1-9
jq-devel - update to 1.8.1-9
jq - update to 1.8.1-9
jq - update to 1.8.2-4.fc45

External References

Related Security Bulletins