CVE-2026-54679 | jq is a command-line JSON processor. Prior to 1.8.2, on 32bi… | CVSS 6.9 MEDIUM

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.

Metadata

CVE ID: CVE-2026-54679
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-15 22:53 UTC
Published: 2026-06-25 17:16 UTC
Last updated: 2026-06-25 18:09 UTC
Primary CWE: CWE-190
CWE-190: Integer Overflow or Wraparound
Vendor / Product: jqlang / jq
Sources: cve.org · NVD

Severity & Metrics

6.9 MEDIUM CVSS 4.0

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
jqlang	jq	—	< 1.8.2

Weakness (CWE)

CWE	Source	Description
CWE-190	cna	CWE-190: Integer Overflow or Wraparound

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.9	MEDIUM	4.0	cna	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References (1)

https://github.com/jqlang/jq/security/advisories/GHSA-29gj-222p-j7vx https://github.com/jqlang/jq/security/advisories/GHSA-29gj-222p-j7vx