CVE-2026-95702highCWE-415CWE-416

CVE-2026-95702: fallo de gravedad alta en Google gVisor

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

Publicada el

18Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.5
probabilidad de explotación
—
explotación observada
noninguna fuente lo reporta
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
Google · gVisor
CVEs relacionadas — Google gVisor

En el mismo producto, de las más peligrosas a las menos.

CVE-2024-10603MEDIUMCVE-2024-10603EPSS 0.3%CVE-2024-10026MEDIUMImproved Seeding and Hashing In gVisorEPSS 0.2%CVE-2026-96812HIGHHost Root Sandbox Escape in gVisor via Character Device Passthrough and CUSEEPSS 0.1%CVE-2025-2713MEDIUMImproper File Permission Handling in Google gVisor runscEPSS 0.1%
Referencias
https://github.com/google/gvisor/commit/25c75149bc0eeaa6a3a49b9bbe3473588b2af6dfhttps://github.com/google/gvisor/commit/90bc4fc36fe442257a06ba15df00371561c183edhttps://github.com/google/gvisor/commit/e4efb89c787ef15b09e68d561f1303380e1d5a77