Use After Free Affecting github.com/google/gvisor/pkg/sentry/vfs package, versions <20260831.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOOGLEGVISORPKGSENTRYVFS-20937942
- published14 Oct 2026
- disclosed9 Oct 2026
- creditMikhail Sosonkin
Introduced: 9 Oct 2026
NewCVE-2026-95702 Â (opens in a new tab)How to fix?
Upgrade github.com/google/gvisor/pkg/sentry/vfs to version 20260831.0 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free via the MemoryFile process. An attacker can execute arbitrary code in the host sentry process by triggering a double-free condition from an in-sandbox overlay filesystem. This is only exploitable if the attacker has standard container privileges within the affected environment. The sentry process remains confined by host-level Linux seccomp and namespace boundaries.