{"id":"AZL-90258","summary":"CVE-2026-56131 affecting package expat for versions less than 2.8.2-1","details":"libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).","modified":"2026-08-28T17:47:53.488835224Z","published":"2026-06-19T06:17:10Z","upstream":["CVE-2026-56131"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56131"}],"affected":[{"package":{"name":"expat","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/expat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-90258.json"}}],"schema_version":"1.9.0"}