CVE-2026-43895 Details
Description
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.
A vulnerability in jq, a command-line JSON processor, allows embedded NUL bytes in import paths to bypass local redaction policies. This issue is present in jq versions through 1.8.1. The vulnerability arises because jq's import path handling converts length-aware strings into NUL-terminated C strings, creating a mismatch during module and data file lookup. As a result, jq can load unintended files, leading to the retention of sensitive information in published artifacts.
Users are advised to avoid embedding NUL bytes in jq import paths. However, as of now, there is no official patch available for this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 13, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/jqlang/jq/security/advisories/GHSA-7q7g-mrq3-phxr | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/jqlang/jq/security/advisories/GHSA-7q7g-mrq3-phxr | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-158 | Improper Neutralization of Null Byte or NUL Character | [email protected] |
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| jqlang jq | <= 1.8.1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 13, 2026 | CVE Modified | CISA-ADP |
| May 11, 2026 | New CVE Received | [email protected] |