OESA-2026-3723 util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities. Security Fixes: util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privilege...

TencentOS Server 4: util-linux (TSSA-2026:0999)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0999 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

util-linux libmount Privilege Escalation via Failed Mount Helper

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SUSE CVE-2026-76642

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

AZL-99081 CVE-2026-76642 affecting package util-linux for versions less than 2.40.2-6

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks

When an external mount. helper runs but exits with a nonzero status, libmount still treats the helper invocation as successful and runs privileged post-mount hooks. A local unprivileged user with an /etc/fstab entry that uses the user option together with X-mount.idmap or X-mount.owner/group/mode...

CVE-2026-76642

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

EUVD-2026-70382

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642

util-linux (libmount component) versions through 2.41.5 and 2.42.2 fail to check the exit status of an external mount helper before executing privileged post-mount hooks. A local unprivileged user with an /etc/fstab entry using the user option combined with X-mount.idmap or X-mount.owner/group/mo...

CVE-2026-76642 util-linux libmount Privilege Escalation via Failed Mount Helper

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642 util-linux libmount Privilege Escalation via Failed Mount Helper

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642 util-linux libmount Privilege Escalation via Failed Mount Helper

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with...

CVE-2026-76642

When an external mount. helper runs but exits with a nonzero status, libmount still treats the helper invocation as successful and runs privileged post-mount hooks. A local unprivileged user with an /etc/fstab entry that uses the user option together with X-mount.idmap or X-mount.owner/group/mode...

EUVD-2026-18766

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix krb5 mount with username option Customer reported that some of their krb5 mounts were failing against a single server as the client was trying to mount the shares with wrong credentials. It turned out the client...

CVE-2025-66002

An Improper Neutralization of Argument Delimiters in a Command 'Argument Injection' vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper...

CVE-2025-66002 Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation

An Improper Neutralization of Argument Delimiters in a Command 'Argument Injection' vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper...

CVE-2025-66002

CVE-2025-66002 affects smb4k (KDE mount helper). Description: an improper neutralization of argument delimiters enables local users to perform arbitrary unmounts via the smb4k mount helper. Impact details in sources indicate local access, low privileges required, with potential high impact on ava...

CVE-2025-66002 Local users can perform arbitrary unmounts via smb4k mount helper due to lack of input validation

An Improper Neutralization of Argument Delimiters in a Command 'Argument Injection' vulnerability allows local users ton perform arbitrary unmounts via smb4k mount helper...