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.
CVE-2026-17527
Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-07-27. a secondary CVSS source baseline 7.7; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.7
- EG Score
- 7.7(high)
- EG Risk
- 35(Track)EG Risk 35/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity77% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 30%
- KEV
- Not listed
Published
July 27, 2026
Last Modified
July 27, 2026
Advisory Details (2)
Auto-updated Jul 27, 20262507413 – (CVE-2026-17527) CVE-2026-17527 virt-cdi-operator: containerized-data-importer: cdi.kubevirt.io:view aggregated ClusterRole grants create on datavolumes/source, allowing unauthorized PVC clone
https://bugzilla.redhat.com/show_bug.cgi?id=2507413Vendor Advisories for CVE-2026-17527(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-28 07:55 UTCGHSA enrichment
- 2026-07-27 20:42 UTCGHSA enrichment
- 2026-07-27 19:31 UTCEG score recompute
- 2026-07-27 19:31 UTCGHSA enrichment
- 2026-07-27 19:07 UTCEG score recompute
- 2026-07-27 19:06 UTCGHSA enrichment
- 2026-07-27 10:23 UTCEG score recompute
- 2026-07-27 10:12 UTCEG score recompute
- 2026-07-27 10:12 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-17527?
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Is CVE-2026-17527 actively exploited?
What is the CVSS score of CVE-2026-17527?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-17527
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