CVE-2026-54679

MEDIUM

jq: potential integer overflow in jvp_string_append

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References

Scores

CVSS v3 5.5
EPSS 0.0010
EPSS Percentile 1.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-190
Status published
Products (1)
jqlang/jq < 1.8.2 (2 CPE variants)
Published Jun 25, 2026
Tracked Since Jun 25, 2026