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2.0 Low

CVE-2026-52791 fuse-overlayfs is an implementation of overlayfs in FUSE for rootless containers

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.

Affected products and versions

Product Affected versions Fixed in
fuse-overlayfs 1.17 earliest → < 1.17 1.17

References

Timeline

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