CVE-2026-43896

EUVD-2026-29174
jq is a command-line JSON processor. In 1.8.1 and earlier, unbounded recursion in jv_object_merge_recursive() allows a crafted jq program to crash the process with a segfault. The function is reachable through the * operator when both operands are objects.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
6.2 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
jqlangjq
𝑥
≤ 1.8.1
CNA
Debian logo
Debian Releases
Debian Product
Codename
jq
bookworm
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846
https://github.com/jqlang/jq/security/advisories/GHSA-mg96-6h3q-g846