CVE-2026-64388

Summary: CVE-2026-64388 affects the Linux kernel SMB client when using SMB3 POSIX Extensions, where chown/chgrp updates could be ignored unless CIFS_MOUNT_CIFS_ACL or CIFS_MOUNT_MODE_FROM_SID are also set. The root cause is a missing check for posix_extensions in cifs_setattr_nounix() during UID/...

CVE-2026-64388

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership chown and group chgrp modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFSMOUNTCIFSACL or CIFSMOUNTMODEFROMSID were also explicitly...

CVE-2026-64388 smb/client: fix chown/chgrp with SMB3 POSIX Extensions

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership chown and group chgrp modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFSMOUNTCIFSACL or CIFSMOUNTMODEFROMSID were also explicitly...

CVE-2026-64388: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership chown and group chgrp modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFSMOUNTCIFSACL or CIFSMOUNTMODEFROMSID were also explicitly...

EUVD-2026-46100

Rsync is a file-copying tool that uses a delta-transfer algorithm to synchronize remote and local files. In versions prior to 3.4.3, previous bug fixes for symlink races in open calls missed races in other path based system calls like chmod and chown. For rsync daemons with "use chroot = no" this...

Amazon Linux 2023 : ansible (ALAS2023-2026-1932)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1932 advisory. A local privilege escalation vulnerability was found in the ansible.posix authorizedkey module. The module's keyfile function uses os.chown instead of os.lchown and opens files without ONOFOLLOW when...

CVE-2026-15779: Incorrect Permission Assignment for Critical Resource

A flaw was found in samba's pamwinbind. When mkhomedir is enabled, pamwinbind chowns the target account's home directory without validating the path is not a critical system directory such as /. On affected systems, accounts with / as their home directory a common default for system accounts can...

CVE-2026-59674 LPE from suricata user to root due to chown in %post in suricata packaging

A UNIX Symbolic Link Symlink Following vulnerability in openSUSE Tumbleweed suricata package allows the suricata user to escalate to root. This issue affects openSUSE Tumbleweed: from ? before 8.0.5-2.1; openSUSE Tumbleweed: from ? before 8.0.5-2.1...

K000162230: Node.js vulnerability CVE-2026-21716

Security Advisory Description An incomplete fix for CVE-2024-36137 leaves FileHandle.chmod and FileHandle.chown in the promises API without the required permission checks, while their callback-based equivalents fs.fchmod, fs.fchown were correctly patched. As a result, code running under...

Important: ansible

Issue Overview: A local privilege escalation vulnerability was found in the ansible.posix authorizedkey module. The module's keyfile function uses os.chown instead of os.lchown and opens files without ONOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic...

CVE-2026-47833

setupBpmLogs follows symlink for bpm.log open and chown — container-to-host privilege escalation via /etc/shadow. A compromised process inside a bpm container can cause root to chown an arbitrary host file to vcap and append bpm JSON log lines to it. The chown alone lets the attacker take ownersh...

CVE-2026-47833

setupBpmLogs follows symlink for bpm.log open and chown — container-to-host privilege escalation via /etc/shadow. A compromised process inside a bpm container can cause root to chown an arbitrary host file to vcap and append bpm JSON log lines to it. The chown alone lets the attacker take ownersh...

CVE-2026-53612

Local Privilege Escalation via TOCTOU in mount8 hookowner.c chmod/chown...

PT-2026-53078

Name of the Vulnerable Software and Affected Versions openSUSE Tumbleweed versions prior to libblkid-devel-2.42.2-1.1 Description A local privilege escalation exists due to a Time-of-Check to Time-of-Use TOCTOU race condition in the mount8 utility within the hook owner.c file during chmod and cho...

CVE-2026-54229

Affects the abrt-dbus D-Bus service’s ChownProblemDir method. A race condition occurs when ChownProblemDir opens the dump directory with DD_OPEN_READONLY and then calls dd_chown to change ownership of all files to the caller’s UID, which succeeds even while post-create event handlers hold a write...

CVE-2026-54229

A race condition was found in the abrt-dbus D-Bus service's ChownProblemDir method. ChownProblemDir opens the dump directory with DDOPENREADONLY and calls ddchown to change ownership of all files to the caller's uid, succeeding even while post-create event handlers hold a write lock. This allows ...

PT-2026-49074

Name of the Vulnerable Software and Affected Versions abrt-dbus affected versions not specified Description A race condition exists in the ChownProblemDir method of the abrt-dbus D-Bus service. The ChownProblemDir method opens the dump directory using DD OPEN READONLY and executes dd chown to...

Linux Distros Unpatched Vulnerability : CVE-2026-54229

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A race condition was found in the abrt-dbus D-Bus service's ChownProblemDir method. ChownProblemDir opens the dump directory with DDOPENREADONLY and calls ddcho...

DEBIAN-CVE-2026-11837

A local privilege escalation vulnerability was found in the ansible.posix authorizedkey module. The module's keyfile function uses os.chown instead of os.lchown and opens files without ONOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their...

CVE-2026-11837

A local privilege escalation vulnerability was found in the ansible.posix authorizedkey module. The module's keyfile function uses os.chown instead of os.lchown and opens files without ONOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their...