CVE-2026-40564

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Source

https://cve.org/CVERecord?id=CVE-2026-40564

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40564.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-40564

Published

2026-05-26T14:38:21.937Z

Modified

2026-07-08T08:13:29.695807229Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

Apache Flink Kubernetes Operator: Server-Side Request Forgery and local file access in Kubernetes Operator

Details

Files or Directories Accessible to External Parties, Server-Side Request Forgery (SSRF) vulnerability in Apache Flink Kubernetes Operator.

The FlinkSessionJob jarURI is currently not validated so that it points to user-owned files or addresses. This lets a user with CR create permissions read files from the operator pod's filesystem and pull content from any backing store reachable through Flink's pluggable filesystem layer and access them through the submitted Flink job. Furthermore for fetching from http/https addresses there is currently no allowlist on the URI scheme, no host check, no IP-range restriction, and no protection against pointing the URI at internal or link-local addresses.This issue affects Apache Flink Kubernetes Operator: from 1.3.0 before 1.15.0.

Users are recommended to upgrade to version 1.15.0, which fixes the issue.

Database specific

{
    "cna_assigner": "apache",
    "cwe_ids": [
        "CWE-552",
        "CWE-918"
    ],
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "1.3.0"
                },
                {
                    "fixed": "1.15.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "1.3.0"
                },
                {
                    "fixed": "1.15.0"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40564.json"
}

References

Affected packages

Git / github.com/apache/flink-kubernetes-operator

Affected ranges

Type

GIT

Repo

https://github.com/apache/flink-kubernetes-operator

Events

Introduced

b7e40daacdf965e0f450bb4ec06ecc1f19622949

Fixed

79d730bab4d8403f3a447fb027f879f5cbdc59ad

Database specific

{
    "extracted_events": [
        {
            "introduced": "1.3.0"
        },
        {
            "fixed": "1.15.0"
        }
    ],
    "cpe": "cpe:2.3:a:apache:flink_kubernetes_operator:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40564.json"