Vulnerability · Published Oct 9, 2026 · Assigned by redhat
CVE-2026-107935Gvisor-tap-vsock: gvisor-tap-vsock: unathenticated arbitrary file deletion on the host via /expose
Critical 9.3
In plain English
A critical-severity path traversal in gvisor-tap-vsock. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)0.2%top 85.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | podman | 5.8.9-r0 | ALPINE-CVE-2026-107935 |
| Debian:13 | golang-github-containers-gvisor-tap-vsocks | no fix listed | DEBIAN-CVE-2026-107935 |
| Debian:14 | golang-github-containers-gvisor-tap-vsocks | no fix listed | DEBIAN-CVE-2026-107935 |
| Ubuntu:24.04:LTS | golang-github-containers-gvisor-tap-vsocks | no fix listed | UBUNTU-CVE-2026-107935 |
| Ubuntu:26.04:LTS | golang-github-containers-gvisor-tap-vsocks | no fix listed | UBUNTU-CVE-2026-107935 |
| Ubuntu:26.10 | golang-github-containers-gvisor-tap-vsocks | no fix listed | UBUNTU-CVE-2026-107935 |
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
References
- https://access.redhat.com/security/cve/CVE-2026-107935 vdb-entry, x_refsource_REDHAT
- RHBZ#2548382 issue-tracking, x_refsource_REDHAT
- https://github.com/containers/gvisor-tap-vsock/pull/718
- https://redhat.atlassian.net/browse/RHDESK-550