{"id":"AZL-86372","summary":"CVE-2026-43894 affecting package jq 1.7.1-8","details":"jq is a command-line JSON processor. In 1.8.1 and earlier, when decNumberFromString is given a number literal of INT_MAX-1 (2147483646) digits, the D2U() macro overflows during signed-int arithmetic. The wrapped negative value bypasses the heap-allocation size check, causes the function to use a 30-byte stack buffer, and then writes ≈715 million 16-bit units (≈1.4 GiB) at an offset 1.43 GiB below the stack frame. The written content is fully attacker-controlled (the parsed decimal digits, packed 3-per-unit).","modified":"2026-08-30T05:26:50Z","published":"2026-05-11T18:16:37Z","upstream":["CVE-2026-43894"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43894"}],"affected":[{"package":{"name":"jq","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/jq"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.7.1-8"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86372.json"}}],"schema_version":"1.9.0"}