CVE-2026-17527

7.7 HIGH 0.6% exploit odds No fix listed Auth & access

What it is

In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts this permission as sufficient to authorize cloning the contents of any PVC the caller can name, without requiring write access to the source namespace. A user or service account bound to the view role, commonly granted cluster-wide via ClusterRoleBinding, who also has ordinary write access (edit/admin) to any single namespace, can use this to exfiltrate the contents of any PVC in the cluster into a namespace they control, bypassing namespace isolation and the read-only guarantee of the view role.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of data exposure.
Exploit odds: 0.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-07-27 08:42 UTC ReservedThe CVE id was reserved by its CNA
2026-07-27 10:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-11-03 04:16 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.6% in the next 30 days (EPSS).
Severity: 7.7 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2026-07-27 10:16 UTC
Last modified: 2026-11-03 04:16 UTC
Exploit probability: 0.6% · EPSS, next 30 days
Weakness: CWE-639 · Insecure direct object reference
Record status: Awaiting Analysis

Attack profile CVSS 3.1 · 7.7

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-17527.md and follow it. Check whether this project is affected by CVE-2026-17527. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record