CVE-2026-54679

jq: potential integer overflow in jvp_string_append

State: Published
Severity: 6.9 Medium
Published: Jun 25, 2026
Updated: Jun 25, 2026
Reserved: Jun 15, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	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	GitHub_M

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
jqjqlang	< 1.8.2Affected

References

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

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