{"id":"CVE-2019-20056","details":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__shiftsigned.","modified":"2026-03-14T09:36:30.149192Z","published":"2019-12-29T19:15:11.167Z","references":[{"type":"EVIDENCE","url":"https://github.com/saitoha/libsixel/issues/126"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"2.23"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20056.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}