CVE-2026-43895

jq: Embedded NUL in jq import paths causes local redaction-policy bypass and preserves sensitive fields in published artifacts

Published May 11, 2026 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4599-1 jq security update
Debian DLA Debian DLA DLA-4662-1 jq security update
Debian DSA Debian DSA DSA-6416-1 jq security update
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jqlang:jq:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jqlang
Jqlang jq
Vendors & Products Jqlang
Jqlang jq
Type Values Removed Values Added
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.
Title jq: Embedded NUL in jq import paths causes local redaction-policy bypass and preserves sensitive fields in published artifacts
Weaknesses CWE-158
CWE-20
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 13, 2026, 2:41 PM
Reserved
May 4, 2026, 3:17 PM
Status
Analyzed
Published
May 11, 2026, 6:16 PM
Modified
Oct 26, 2026, 6:10 PM
Severity
Moderate
Public date
May 11, 2026, 5:24 PM