Security Advisory

CVE-2026-52791

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-29 16:14:46

Last updated 2026-07-29 17:56:43

Assigner GitHub_M

CVSS score not scored

State PUBLISHED

Description

fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers. Prior to 1.17, the release-1.x C branch preserves SUID and SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with mode 4777. This issue is fixed in version 1.17.

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