CVE-2026-9804
Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
- 7.7HighCVSS base score
- 0.52%Exploitation in 30 daysEPSS · top 56% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.
Timeline
ID reserved
By redhat
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| redhat-SADPADP (enrichment) | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | High7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.52% · top 56% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.
Affected products
Red Hat · Red Hat Container Native Virtualization 4.17
- unaffected 1781757410 – < *
Red Hat · Red Hat Container Native Virtualization 4.18
- unaffected 1781928221 – < *
Red Hat · Red Hat Container Native Virtualization 4.19
- unaffected 1781590993 – < *
Red Hat · Red Hat Container Native Virtualization 4.20
- unaffected 1781838712 – < *
Red Hat · Red Hat Container Native Virtualization 4.21
- unaffected 1782012918 – < *
Red Hat · Red Hat OpenShift Virtualization 4
All versions: affected
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gokubevirt.io/kubevirtGHSA-mpmf-3w4r-qfpf (opens in a new tab)
References
References8
- RHSA-2026:27903 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:27913 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:27914 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:27983 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:28002 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-9804 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2482487 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9804.json (opens in a new tab)x_sadp-csaf-vex
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32748 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mpmf-3w4r-qfpf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-9804)Record last updated .