7.7highHigh
CVE-2026-9804
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.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.7 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N- Weakness
- CWE-59
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2026-05-28
- Last modified
- 2026-08-24
- Sources
- NVD
References
- https://access.redhat.com/errata/RHSA-2026:27903
- https://access.redhat.com/errata/RHSA-2026:27913
- https://access.redhat.com/errata/RHSA-2026:27914
- https://access.redhat.com/errata/RHSA-2026:27983
- https://access.redhat.com/errata/RHSA-2026:28002
- https://access.redhat.com/security/cve/CVE-2026-9804
- https://bugzilla.redhat.com/show_bug.cgi?id=2482487
- https://access.redhat.com/errata/RHSA-2026:27903
- https://access.redhat.com/errata/RHSA-2026:27913
- https://access.redhat.com/errata/RHSA-2026:27914
- https://access.redhat.com/errata/RHSA-2026:27983
- https://access.redhat.com/errata/RHSA-2026:28002
- https://access.redhat.com/security/cve/CVE-2026-9804
- https://bugzilla.redhat.com/show_bug.cgi?id=2482487
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9804.json