CVE-2026-96812

Summary

Improper Exposure of Resource to Wrong Sphere in the host file helper (gofer) in Google gVisor prior to commit 573a9e73cf844f on Linux platforms with CUSE enabled allows a local attacker with container image deployment privileges to achieve root code execution on the host system. By including a /dev/cuse character device node in a container image, opening the device passes through to the host, allowing the sandboxed attacker to register a host device and exploit CUSE unrestricted ioctl handling to overwrite root udev helper memory.

Affected Software

Weaknesses

• CWE-668: CWE-668 Exposure of Resource to Wrong Sphere
• CWE-269: CWE-269 Improper Privilege Management

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://github.com/google/gvisor/commit/573a9e73cf844f

• ←Previous
• Next→