CVE-2026-89638

A flaw was found in the Linux kernel's Server Message Block SMB client. When a file with the setuid or setgid bit is written to on certain Common Internet File System CIFS mounts specifically those using 'cifsacl', 'modefromsid' options, or SMB3.1.1 POSIX extensions, the kernel fails to properly...

DEBIAN-CVE-2026-89638

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

CVE-2026-89638

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

AZL-100353 CVE-2026-89638 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

CVE-2026-89638

CVE-2026-89638 is a Linux kernel SMB client (cifs.ko) flaw rated CVSS 7.8 (HIGH) , exploitable locally with low privileges. When a file with the setuid or setgid bit is written to on CIFS mounts using the cifsacl , modefromsid , or SMB3.1.1 POSIX extensions, the kernel's cifs_setattr_unix() and c...

EUVD-2026-76550

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

CVE-2026-89638 smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

CVE-2026-79783

A flaw was found in rclone. This vulnerability allows a remote attacker to escalate privileges by manipulating file metadata. When copying files with metadata preservation from an untrusted source, rclone fails to properly mask special permission bits. This oversight enables an attacker to set...

Security Bulletin: IBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc. (CVE-2026-10535)

Summary IBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc. Vulnerability Details CVEID:CVE-2026-10535 DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to buffer overflow in setgid helper db2flacc. CWE:CWE-121: Stack-based Buffer Overflow CVSS...

Linux Distros Unpatched Vulnerability : CVE-2026-79783

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the implementation of the QEMU virtio-fs shared file system daemon virtiofsd. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in directories shared by virtio-fs, with unintended group ownership. This occurs in a scenario where a...

Astra Linux – Vulnerability in Containerd

Containerd is a container runtime. A bug was discovered in containerd versions prior to 1.4.8 and 1.5.4, where pulling and extracting a specially crafted container image could result in changes to Unix file permissions for existing files in the host’s filesystem. Changes to file permissions could...

Astra Linux – Vulnerability in Systemd

It was discovered that a Systemd service that uses the DynamicUser property can obtain new privileges by executing SUID binaries. This allows the service to create binaries belonging to the transient group, with the setgid bit set. A local attacker could exploit this flaw to access resources that...

K000163042: OpenSSH vulnerability CVE-2026-35385

Security Advisory Description In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O legacy scp protocol and without -p preserve mode. CVE-2026-35385 Impact There is no impac...

EulerOS 2.0 SP11 : sudo (EulerOS-SA-2026-3159)

According to the versions of the sudo packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not...

EulerOS 2.0 SP13 : sudo (EulerOS-SA-2026-3052)

According to the versions of the sudo packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not...

GHSA-945V-V9P3-V5XW rclone local `--metadata` applies attacker-controlled mode/uid - setuid binary planted from an untrusted remote

Summary When writing an object with metadata, the local backend applies the source-supplied mode, uid, and gid verbatim: it parses mode as an octal integer and passes it straight into os.Chmodo.path, os.FileModeumode, and passes uid/gid straight into os.Chown. The value is never masked to...

rclone local `--metadata` applies attacker-controlled mode/uid - setuid binary planted from an untrusted remote

Summary When writing an object with metadata, the local backend applies the source-supplied mode, uid, and gid verbatim: it parses mode as an octal integer and passes it straight into os.Chmodo.path, os.FileModeumode, and passes uid/gid straight into os.Chown. The value is never masked to...

SUSE 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...

IBM Db2 db2flacc buffer overflow vulnerability

IBM Db2 is a relational database management system that provides data storage, querying, and management capabilities, supporting enterprise-level applications. There is a buffer overflow vulnerability in IBM Db2. This vulnerability stems from the setgid helper program db2flacc, which fails to...