PT-2026-96425

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 ATTR KILL SUID/ATTR KILL...

PT-2026-90354

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the SMB client where the setuid or setgid bits are not properly cleared on the server when a file is written to. While the Virtual File System VFS strips these bits an...

sudo: Sudo: Privilege escalation due to failure in privilege drop calls

A flaw was found in Sudo. A local user could exploit a failure in the setuid, setgid, or setgroups calls, which are used to drop privileges before running the mailer. This oversight allows for privilege escalation, enabling the user to gain elevated access on the system...

NewStart CGSL MAIN 7.02 : openssh Multiple Vulnerabilities (NS-SA-2026-0101)

The remote NewStart CGSL host, running version MAIN 7.02, has openssh packages installed that are affected by multiple vulnerabilities: - ssh in OpenSSH before 10.4 can have a use-after-free when a server changes its host key during a key re- exchange. This outcome occurs only on the client side...

COPY-FAIL-CVE-2026-31431

This is a public Proof-of-Concept PoC for CVE-2026-31431 "Copy Fail", a Linux kernel local privilege escalation vulnerability CVSS 7.8 affecting most major distributions since 2017. It corrupts the page cache of a setuid binary like /usr/bin/su using the kernel's AFALG crypto API + splice, allowi...

SUSE CVE-2026-79783

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 setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid...

[SECURITY] Fedora 43 Update: bubblewrap-0.12.0-1.fc43

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

[SECURITY] Fedora 44 Update: bubblewrap-0.12.0-1.fc44

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

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...

bubblewrap: bubblewrap: Privilege escalation via ptrace when installed in setuid mode

A flaw was found in bubblewrap when operating in setuid mode. A local user may use ptrace to interfere with the sandbox setup process and gain access to privileged operations that are normally restricted. This could allow an attacker to bypass intended sandboxing restrictions and potentially...

CVE-2026-58089

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

EUVD-2026-66234

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

CVE-2026-58089

The hwpmc(4) driver in FreeBSD contains a vulnerability where it fails to detach Performance Monitoring Counters (PMCs) owned by unprivileged processes during an execve(2) call to a setuid or setgid image. This is caused by an inverted check in the kernel, allowing a local unprivileged user to co...

CVE-2026-58089

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

CVE-2026-58089 hwpmc fails to detach PMCs during exec credential transitions

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

CVE-2026-58089: Improper Check for Dropped Privileges

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

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...

FreeBSD : FreeBSD -- hwpmc fails to detach PMCs during exec credential transitions (9c2801aa-a0fd-11f1-ae1f-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 9c2801aa-a0fd-11f1-ae1f-bc241121aa0a advisory. When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs own...

CVE-2026-79783

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 setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid...

CVE-2026-79783 rclone before 1.74.4 Privilege Escalation via setuid Metadata

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 setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid...