CVE-2026-64640

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Source
https://cve.org/CVERecord?id=CVE-2026-64640
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64640.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-64640
Aliases
Downstream
Published
2026-08-06T09:08:06.534Z
Modified
2026-08-08T03:32:28.802742875Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/S:N/U:Clear CVSS Calculator
Summary
Apache Polaris: register endpoint reads attacker-controlled storage location before allowed-locations validation
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "cna_assigner": "apache",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64640.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "last_affected": "1.6.0"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/apache/polaris

Affected ranges

Type
GIT
Repo
https://github.com/apache/polaris
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
dd306009d81a0e15adafe9dcd7d1c6d04d326f34
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.6.0"
        }
    ],
    "cpe": "cpe:2.3:a:apache:polaris:*:*:*:*:*:*:*:*"
}

Affected versions

apache-polaris-1.*
apache-polaris-1.6.0
apache-polaris-1.6.0-rc0
apache-polaris-1.6.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64640.json"