{"id":"AZL-81710","summary":"CVE-2026-27858 affecting package dovecot 2.3.20-1","details":"Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory.\r\n Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No publicly available exploits are known.","modified":"2026-09-02T05:29:58Z","published":"2026-03-27T09:16:20Z","upstream":["CVE-2026-27858"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27858"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/dovecot"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.3.20-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81710.json"}}],"schema_version":"1.9.0"}