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Code Execution in Host Sentry Process via Double Free in gVisor VFS MemoryFile

Type: advisorySource: Official CVE List1 source record

Use-after-free vulnerability in VFS in Google gVisor prior to release 20260831.0 on all platforms allows a local attacker with standard container privileges to achieve code execution in the host sentry process by double-freeing the backing MemoryFile from an in-sandbox overlay filesystem. The sentry process remains confined by host-level Linux seccomp and namespace boundaries.

Announced Source revision 1
Original source ↗

CVE-2026-95702

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-95702

gVisor

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/google/gvisor",
    "vendor": "Google",
    "product": "gVisor",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "20260831.0",
        "versionType": "semver"
      }
    ],
    "platforms": [
      "Linux"
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-95702

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30017 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement