Integer overflow in jq - #VU127960
Published: April 27, 2026 / Updated: August 19, 2026
Vulnerability identifier: #VU127960
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow in JSON parser "tokenadd" buffer growth. A remote attacker can pass specially crafted data to the application, trigger integer overflow and cause a denial of service condition on the target system.
Affected software
jq
Remediation
Install update from vendor's website.
jq - update to 1.8.2