CVE-2026-43894
jq: jq: Arbitrary Code Execution or Denial of Service via Signed Integer Overflow
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 12, 2026
Updated · September 1, 2026
Description
A flaw was found in jq, a tool used for processing JSON data from the command line. A remote attacker can exploit a vulnerability by providing a specially crafted large number as input. This can cause an internal calculation error, leading to a memory overflow where the attacker can write their own data into the system's memory, potentially resulting in the application crashing (Denial of Service).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound