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.
History

Tue, 02 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 14:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:flink_kubernetes_operator:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache flink Kubernetes Operator
Vendors & Products Apache
Apache flink Kubernetes Operator

Tue, 26 May 2026 17:30:00 +0000

Type Values Removed Values Added
References

Tue, 26 May 2026 15:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Apache Flink Kubernetes Operator: Server-Side Request Forgery and local file access in Kubernetes Operator
Weaknesses CWE-552
CWE-918
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-05-26T14:38:21.937Z

Updated: 2026-06-02T14:12:08.938Z

Reserved: 2026-04-14T12:59:12.603Z

Link: CVE-2026-40564

cve-icon Vulnrichment

Updated: 2026-05-26T16:18:03.659Z

cve-icon NVD

Status : Modified

Published: 2026-05-26T16:16:24.590

Modified: 2026-06-02T16:16:38.893

Link: CVE-2026-40564

cve-icon Redhat

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