CVE-2026-43895CWE-158CWE-20

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

Medium · published May 11, 2026

CVSS v3.1
4.4
EPSS
0%
Percentile
4.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00157 · 4.5th percentile
Weaknesses
CWE-158 · Improper Neutralization of Null Byte or NUL Character; CWE-20 · Improper Input Validation
Published
2026-05-11T17:24Z
EPSS history
Timeline
  • 11 MAY 17:24Z
    jq: Embedded NUL in jq import paths causes local redaction-policy bypass and preserves sensitive fields in published artifacts
    cvelistv5