CVE-2026-54679

EUVD-2026-39499
jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun.  This vulnerability is fixed in 1.8.2.
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:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 1.11%
Affected Products (NVD)
VendorProductVersion
jqlangjq
𝑥
< 1.8.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
jq
bookworm
1.6-2.1+deb12u2
fixed
bookworm (security)
1.6-2.1+deb12u2
fixed
bullseye
vulnerable
bullseye (security)
1.6-2.1+deb11u3
fixed
forky
1.8.2-1
fixed
sid
1.8.2-1
fixed
trixie
vulnerable
trixie (security)
1.7.1-6+deb13u3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
jq
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
trusty
needs-triage