CVE-2026-42811 Apache Polaris: could broaden vended GCS credentials through unescaped identifier content in access-boundary CEL conditions

In plain terms, Apache Polaris is supposed to issue short-lived GCS credentials that only work for one table's files, but a crafted namespace or table name can cause those credentials to work across the configured bucket instead. Apache Polaris builds Google Cloud Storage downscoped credentials b...

CVE-2026-42811

CVE-2026-42811 : Apache Polaris builds Google Cloud Storage downscoped credentials via a Credential Access Boundary (CAB) with CEL conditions intended to constrain to a table path. The CEL string uses the bucket and table path; if a namespace/table identifier contains special content (e.g., a sin...

CVE-2026-42811

In plain terms, Apache Polaris is supposed to issue short-lived GCS credentials that only work for one table's files, but a crafted namespace or table name can cause those credentials to work across the configured bucket instead. Apache Polaris builds Google Cloud Storage downscoped credentials b...