========================================================================== Ubuntu Security Notice USN-8202-2 April 28, 2026
jq vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: Summary: Several security issues were fixed in jq. Software Description: Details: USN-8202-1 fixed vulnerabilities in jq. This update provides the corresponding update to Ubuntu 26.04 LTS. Original advisory details: It was discovered that jq did not correctly handle certain string concatenations. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-32316) It was discovered that jq did not correctly handle recursion in certain circumstances. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-33947) It was discovered that jq did not correctly handle improperly terminated strings. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-33948) It was discovered that jq did not correctly handle checking certain variable types. An attacker could possibly use this issue to cause a denial of service or leak sensitive information. (CVE-2026-39956) It was discovered that jq did not correctly handle certain string formatting. An attacker could possibly use this issue to leak sensitive information or cause a denial of service. (CVE-2026-39979) It was discovered that jq used a fixed seed for hash table operations. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-40164) Update instructions: The problem can be corrected by updating your system to the following package versions: In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8202-2 https://ubuntu.com/security/notices/USN-8202-1 CVE-2026-32316, CVE-2026-33947, CVE-2026-33948, CVE-2026-39956, CVE-2026-39979, CVE-2026-40164
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