CVE-2026-52791

A flaw was found in fuse-overlayfs, a component used for rootless containers. This vulnerability allows a low-privileged process to retain SUID Set User ID and SGID Set Group ID permissions on files after they are truncated or opened with the OTRUNC flag. This can enable a local attacker to...

UBUNTU-CVE-2026-52791

fuse-overlayfs is an implementation of overlayfs in FUSE for rootless...

CVE-2026-52791

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 openOTRUNC and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with...

CVE-2026-52791

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 openOTRUNC and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with...

CVE-2026-52791

Fuse-overlayfs (overlayfs in FUSE for rootless containers) before version 1.17 on the release-1.x C branch preserves SUID/SGID mode bits in main.c during open(O_TRUNC) and truncate handling on a copied-up file. This may allow a low-privilege process to leave the upper-layer file with mode 4777. T...

CVE-2026-52791 fuse-overlayfs release-1.x preserves SUID/SGID bits after truncate/open(O_TRUNC)

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 openOTRUNC and truncate handling on a copied-up file, allowing a low-privileged process to leave the upper-layer file with...

Linux Distros Unpatched Vulnerability : CVE-2026-52791

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

kernel: fs/notify: call exportfs_encode_fid with s_umount

A flaw was found in the Linux kernel’s filesystem notification fs/notify code where calling inotifyshowfdinfo on a file descriptor watching an overlayfs inode during an unmount operation could lead to a NULL pointer dereference...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: clear page-private in freepagesprepare CVE-2026-43303 In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks CVE-2026-45850 In the Linux...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ipvs: skip ipv6 extension headers for csum checks CVE-2026-45850 In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 In the Lin...

MiracleLinux 8 : kernel-4.18.0-553.137.1.el8_10 (AXSA:2026-1193:46)

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1193:46 advisory. kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 Tenable has extracted the preceding description block directly from the...

container-tools:ol8 security, bug fix, and enhancement update

aardvark-dns 2:1.10.1-2 - build off the RHEL maintenance branch - Resolves: RHEL-59129 buildah 2:1.33.14-3 - rebuild for CVE-2025-68121 - Resolves: RHEL-149262 cockpit-podman 84.1-1 - update to https://github.com/cockpit-project/cockpit-podman/releases/tag/84.1 - Related: Jira:RHEL-25557 conmon...

RHEL 9 : kernel (RHSA-2026:30848)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:30848 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: drm/amd/display: Do not skip...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation CVE-2026-31488 kernel: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach CVE-2026-43038 kernel: netfilter: flowtabl...

ALSA-2026:30848 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation CVE-2026-31488 kernel: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach CVE-2026-43038 kernel: netfilter: flowtabl...

kernel-rt security update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

RLSA-2026:27811 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related...

RockyLinux 8 : kernel (RLSA-2026:27811)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:27811 advisory. kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 Tenable has extracted the preceding description block directly from the RockyLinux...

RockyLinux 8 : kernel-rt (RLSA-2026:27812)

The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:27812 advisory. kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 Tenable has extracted the preceding description block directly from the RockyLinux...

AlmaLinux 8 : kernel-rt (ALSA-2026:27812)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:27812 advisory. kernel: selinux: fix overlayfs mmap and mprotect access checks CVE-2026-46054 Tenable has extracted the preceding description block directly from the AlmaLinux...