CVE catalog

CVE-2026-95702

Use-after-free vulnerability in VFS in Google gVisor…

[CVE catalog]

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.

Severity
High · CVSS 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.08% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "golang-gvisor-gvisor",
      "status": "vulnerable",
      "release": "sid",
      "version": "0.0~20240729.0-7"
    },
    {
      "name": "golang-gvisor-gvisor",
      "status": "vulnerable",
      "release": "forky",
      "version": "0.0~20240729.0-7"
    },
    {
      "name": "golang-gvisor-gvisor",
      "status": "vulnerable",
      "release": "trixie",
      "version": "0.0~20240729.0-4"
    },
    {
      "name": "golang-gvisor-gvisor",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "0.0~20221219.0-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1150510,
      "name": "golang-gvisor-gvisor",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1150510,
      "name": "golang-gvisor-gvisor",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1150510,
      "name": "golang-gvisor-gvisor",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": 1150510,
      "name": "golang-gvisor-gvisor",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": []
}

[Debian bug #1150510]

Publisher notes

[trixie] golang-gvisor-gvisor: Minor issue

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [golang-gvisor-gvisor-dev]Unknown

    Source package: [golang-gvisor-gvisor]

    Details (4)

    • 0.0~20221219.0-2 · all · bookworm

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20221219.0-2 · all · bookworm

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20240729.0-4~bpo12+2 · all · bookworm-backports

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20240729.0-4~bpo12+2 · all · bookworm-backports

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

  • [runsc]Unknown

    Source package: [golang-gvisor-gvisor]

    Details (4)

    • 0.0~20221219.0-2+b3 · amd64 · bookworm

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20221219.0-2+b3 · arm64 · bookworm

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20240729.0-4~bpo12+2 · amd64 · bookworm-backports

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

    • 0.0~20240729.0-4~bpo12+2 · arm64 · bookworm-backports

      Affected

      nvd · golang-gvisor-gvisor · debian · bookworm

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]