CVE-2026-17527

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

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.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

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 computed
Severity77% × 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, 2026
Patch available. Sources: redhat.
redhat

2507413 – (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=2507413
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-17527

Vendor 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 11× in last 7d / 11× 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.

  1. 2026-07-28 19:08 UTCEG score recompute
  2. 2026-07-28 19:08 UTCGHSA enrichment
  3. 2026-07-28 07:55 UTCGHSA enrichment
  4. 2026-07-27 20:42 UTCGHSA enrichment
  5. 2026-07-27 19:31 UTCEG score recompute
  6. 2026-07-27 19:31 UTCGHSA enrichment
  7. 2026-07-27 19:07 UTCEG score recompute
  8. 2026-07-27 19:06 UTCGHSA enrichment
  9. 2026-07-27 10:23 UTCEG score recompute
  10. 2026-07-27 10:12 UTCEG score recompute
  11. 2026-07-27 10:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-17527?
CVE-2026-17527 is a high vulnerability published on July 27, 2026. 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…
When was CVE-2026-17527 disclosed?
CVE-2026-17527 was first published in the National Vulnerability Database on July 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17527 actively exploited?
CVE-2026-17527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 69.8% of all scored CVEs.
What is the CVSS score of CVE-2026-17527?
CVE-2026-17527 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-17527?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17527, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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