VulnSocial

CVE-2026-40564Disclosure(apache / flink_kubernetes_operator)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

apache CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-552CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • flink_kubernetes_operator

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
apache
Products
flink_kubernetes_operator

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-28: 1Technical Details · 2026-05-28: 105-28
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Open Source Security mailing list@oss_security
    Disclosure

    CVE-2026-40564: Apache Flink Kubernetes Operator: Server-Side Request Forgery and local file access in Kubernetes Operator https://www.openwall.com/lists/oss-security/2026/05/26/6 Severity: moderate

    Post summary

    The post announces CVE‑2026‑40564, highlighting moderate‑severity SSRF and local file access vulnerabilities in Apache Flink’s Kubernetes Operator, with no mention of exploit code, active attacks, or patches.

    01060674
    4.7K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapacheflink_kubernetes_operator---

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