Gvisor-tap-vsock: gvisor-tap-vsock: unathenticated arbitrary file deletion on the host via /expose
Summary
| CVE | CVE-2026-107935 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-09 10:16:37 UTC |
| Updated | 2026-10-09 20:17:10 UTC |
| Description | A path traversal vulnerability was found in gvproxy, the network forwarder provided by the gvisor-tap-vsock package. The unauthenticated /services/forwarder/expose endpoint does not validate the caller-supplied socket path, allowing an attacker to delete arbitrary files on the host system. |
Risk And Classification
Primary CVSS: v3.1 9.3 CRITICAL from [email protected]
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Problem Types: CWE-22 | CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 9.3 | CRITICAL | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H |
| 3.1 | CNA | CVSS | 9.3 | CRITICAL | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
AdjacentAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
NoneIntegrity
HighAvailability
HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/security/cve/CVE-2026-107935 | [email protected] | access.redhat.com | |
| redhat.atlassian.net/browse/RHDESK-550 | [email protected] | redhat.atlassian.net | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| github.com/containers/gvisor-tap-vsock/pull/718 | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: This issue was discovered by Lucas Celant (Red Hat). (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-09T06:52:44.491Z | Reported to Red Hat. |
| CNA | 2026-08-31T00:00:00.000Z | Made public. |
There are currently no legacy QID mappings associated with this CVE.