CVE-2026-49326 Apache HBase: Missing scanner instance owner check in thrift delegation service

Missing Authorization vulnerability in Apache HBase thrift and rest delegation service. A scan operation in thrift/rest service has 3 steps, open, fetchpossible multiple times, close. The open step will return an id which will be passed back to server for identifying the scanner instances stored ...

CVE-2026-49326 Apache HBase: Missing scanner instance owner check in thrift delegation service

Missing Authorization vulnerability in Apache HBase thrift and rest delegation service. A scan operation in thrift/rest service has 3 steps, open, fetchpossible multiple times, close. The open step will return an id which will be passed back to server for identifying the scanner instances stored ...

CVE-2026-49326 Apache HBase: Missing scanner instance owner check in thrift delegation service

Missing Authorization vulnerability in Apache HBase thrift and rest delegation service. A scan operation in thrift/rest service has 3 steps, open, fetchpossible multiple times, close. The open step will return an id which will be passed back to server for identifying the scanner instances stored ...

CVE-2026-49326

Apache HBase is vulnerable to a Missing Authorization flaw in its thrift and rest delegation services, specifically within the ScannerInstanceResource and HBaseServiceHandler components. The root cause is the failure to verify that a user owns a scanner instance during fetch or close operations a...