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CVE-2026-64640
No affected components available
Apache Polaris did not consistently validate storage locations supplied during table and view registration.
An authenticated principal with permission to register a table or view could, depending on the affected release and registration path, cause Polaris to use the catalog's storage credentials to read a caller-selected Iceberg metadata file before verifying that the file was within the catalog's allowed storage locations.
If the catalog's underlying credentials could read an object outside that boundary, this could disclose limited information from the object.
Polaris could also accept registration metadata located within an allowed location that contained references to storage locations outside the allowed boundary.
This second condition did not itself cause Polaris to read the referenced external locations during registration.
The demonstrated impact is limited to confidentiality.
No unauthorized data modification or availability impact has been demonstrated.
The server-side read requires a deployment using S3 credential vending and an object outside the allowed locations that the catalog's underlying storage credentials can read.
Exploitation requires an authenticated principal with table- or view-registration privileges.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
A proof of concept is available for this vulnerability (1 exploit found).
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