Incorrect Privilege Assignment Affecting fuse-overlayfs package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-DEBIAN12-FUSEOVERLAYFS-18392565
  • published30 Jul 2026
  • disclosed29 Jul 2026

Introduced: 29 Jul 2026

CVE-2026-52791  (opens in a new tab)
CWE-266  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 fuse-overlayfs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fuse-overlayfs package and not the fuse-overlayfs package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1