CVE-2026-41256

EUVD-2026-29162
jq is a command-line JSON processor. In 1.8.1 and earlier, Top-level jq programs loaded from a file with -f are truncated at the first embedded NUL byte on current upstream HEAD. A crafted filter file such as . followed by \x00 and arbitrary suffix compiles and executes as only the prefix before the NUL. This leaves jq with a post-CVE-2026-33948 prefix/full-buffer mismatch on the compilation path even though the JSON parser path has already been fixed.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
jqlangjq
𝑥
≤ 1.8.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
jq
bookworm
no-dsa
bullseye
vulnerable
bullseye (security)
1.6-2.1+deb11u2
fixed
forky
1.8.1-8
fixed
sid
1.8.2-1
fixed
trixie
no-dsa
Azure Linux logo
Azure Linux Releases
Azure Package
Release
jq
Azure Linux 3.0
0:1.7.1-6.azl3
fixed