{"id":"AZL-85238","summary":"CVE-2026-40356 affecting package krb5 for versions less than 1.21.3-4","details":"In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.","modified":"2026-08-31T05:26:27Z","published":"2026-04-28T07:16:03Z","upstream":["CVE-2026-40356"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40356"}],"affected":[{"package":{"name":"krb5","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/krb5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.3-4"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-85238.json"}}],"schema_version":"1.9.0"}