Improper Neutralization of Null Byte or NUL Character in jq - CVE-2026-43895

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Main Vulnerability Database Vulnerabilities #VU130919

Improper Neutralization of Null Byte or NUL Character in jq - CVE-2026-43895

Published: May 11, 2026


Vulnerability identifier: #VU130919
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2026-43895
CWE-ID: CWE-158
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vulnerable software:
jq
Software vendor:
stedolan (Stephen Dolan)

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to improper neutralization of null byte or NUL character in src/linker.c. A local user can cause the target application to load a different module or JSON data file than the one approved by the policy layer.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links