{"id":"AZL-91746","summary":"CVE-2026-57585 affecting package python-msgpack for versions less than 1.0.5-3","details":"MessagePack is the serializer implementation for Python msgpack.org. Prior to 1.2.1, there is an Out-of-bounds read/crash on Unpacker reuse after a caught error, potentially leading to a DoS attack.  If the Unpacker is used repeatedly after an error occurs, the process may crash with a SEGV. This issue has been fixed in version 1.2.1.","modified":"2026-09-02T06:51:55Z","published":"2026-06-30T22:16:57Z","upstream":["CVE-2026-57585"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57585"}],"affected":[{"package":{"name":"python-msgpack","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/python-msgpack"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.5-3"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-91746.json"}}],"schema_version":"1.9.0"}