{"id":"AZL-99705","summary":"CVE-2026-86143 affecting package libxml2 2.11.5-10","details":"In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative lengths to reach write callbacks, aka a lack of a check for integer overflow before calling writecallback. This has security relevance for many types of uses of that length value within a callback.","modified":"2026-09-06T14:18:06.587798309Z","published":"2026-09-05T05:17:13Z","upstream":["CVE-2026-86143"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86143"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/libxml2"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.11.5-10"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99705.json"}}],"schema_version":"1.9.0"}