CVE-2026-43895

jq is a command-line JSON processor. In 1.8.1 and earlier, jq accepts embedded NUL bytes in import paths at the jq-language level, but later resolves those paths through C string operations during module and data-file lookup. This creates a mismatch between the logical import string that policy or audit code may validate and the on-disk path that jq actually opens.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/jqlang/jq/security/advisories/GHSA-7q7g-mrq3-phxr	Exploit Mitigation Vendor Advisory
https://github.com/jqlang/jq/security/advisories/GHSA-7q7g-mrq3-phxr	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*

History

26 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) jq es un procesador JSON de línea de comandos. En la versión 1.8.1 y anteriores, jq acepta bytes NUL incrustados en las rutas de importación a nivel del lenguaje jq, pero luego resuelve esas rutas a través de operaciones de cadena de C durante la búsqueda de módulos y archivos de datos. Esto crea una discrepancia entre la cadena de importación lógica que el código de política o auditoría puede validar y la ruta en disco que jq realmente abre.

Information

Published : 2026-05-11 18:16

Updated : 2026-10-26 18:10

NVD link : CVE-2026-43895

Mitre link : CVE-2026-43895

CVE.ORG link : CVE-2026-43895

JSON object : View

Products Affected

jqlang

jq

CWE

CWE-20

Improper Input Validation

CWE-158

Improper Neutralization of Null Byte or NUL Character

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