{"schema_version":"1.7.2","id":"OESA-2026-3219","modified":"2026-08-06T11:12:05Z","published":"2026-08-01T11:12:05Z","upstream":["CVE-2026-54522"],"summary":"rubygem-msgpack security update","details":"MessagePack is a binary-based efficient object serialization library. It enables to exchange structured objects between many languages like JSON. But unlike JSON, it is very fast and small.\r\n\r\nSecurity Fix(es):\n\nAffected versions of this package are vulnerable to Use After Free in the `clear` function. An attacker can access or manipulate memory contents from another buffer by triggering the reuse of a memory page after it has been returned to the shared pool, leading to unintended disclosure or modification of data.(CVE-2026-54522)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP4","name":"rubygem-msgpack","purl":"pkg:rpm/openEuler/rubygem-msgpack&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-1.oe2403sp4"}]}],"ecosystem_specific":{"aarch64":["rubygem-msgpack-1.8.3-1.oe2403sp4.aarch64.rpm","rubygem-msgpack-debuginfo-1.8.3-1.oe2403sp4.aarch64.rpm","rubygem-msgpack-debugsource-1.8.3-1.oe2403sp4.aarch64.rpm"],"noarch":["rubygem-msgpack-help-1.8.3-1.oe2403sp4.noarch.rpm"],"src":["rubygem-msgpack-1.8.3-1.oe2403sp4.src.rpm"],"x86_64":["rubygem-msgpack-1.8.3-1.oe2403sp4.x86_64.rpm","rubygem-msgpack-debuginfo-1.8.3-1.oe2403sp4.x86_64.rpm","rubygem-msgpack-debugsource-1.8.3-1.oe2403sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3219"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54522"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"}],"database_specific":{"severity":"High"}}