CVE-2026-29518 Rsync < 3.4.3 TOCTOU Race Condition Allows Symlink-Based Arbitrary File Write

Rsync versions before 3.4.3 contain a time-of-check to time-of-use TOCTOU race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path ca...

CVE-2026-29518

Rsync

EUVD-2026-31100

Rsync versions before 3.4.3 contain a time-of-check to time-of-use TOCTOU race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path ca...

CVE-2026-29518

Rsync versions before 3.4.3 contain a time-of-check to time-of-use TOCTOU race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path ca...

CVE-2026-29518 Rsync < 3.4.3 TOCTOU Race Condition Allows Symlink-Based Arbitrary File Write

Rsync versions before 3.4.3 contain a time-of-check to time-of-use TOCTOU race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components with symbolic links. Attackers with write access to a module path ca...

USN-8283-1 rsync vulnerabilities

Calum Hutton discovered that rsync contained a heap-based out-of-bounds read when handling file transfers. A remote attacker with read access to an rsync server could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.1...

CVE-2026-44933

PluginScript attempts to chroot the plugin to the repoManagerRoot, this root is frequently / the system root in standard configurations or when using --root. If the chroot target is /, it is a no-op, allowing the traversed path to execute host binaries like /bin/bash with root privileges...

CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

UBUNTU-CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

UBUNTU-CVE-2026-44933

PluginScript attempts to chroot the plugin to the repoManagerRoot, this root is frequently / the system root in standard configurations or when using --root. If the chroot target is /, it is a no-op, allowing the traversed path to execute host binaries like /bin/bash with root privileges...

CVE-2026-41054 Missing exit out of permission check in haveged could lead to root exploit

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

CVE-2026-41054

CVE-2026-41054 affects haveged. In haveged’s source havegecmd.c, socket_handler checks the caller via an abstract UNIX socket and returns a negative acknowledgment for non-root users, but execution is not halted, enabling a local unprivileged user to reach privileged actions (e.g., MAGIC_CHROOT)....

CVE-2026-41054

In src/havegecmd.c, the sockethandler function performs a credential check on the abstract UNIX socket \0/sys/entropy/haveged. However, while it detects if the connecting user is not root cred.uid != 0 and prepares a negative acknowledgement ASCIINAK, it fails to stop execution. The code proceeds...

CVE-2026-44933 Path Traversal in Plugin Loading in libzypp

PluginScript attempts to chroot the plugin to the repoManagerRoot, this root is frequently / the system root in standard configurations or when using --root. If the chroot target is /, it is a no-op, allowing the traversed path to execute host binaries like /bin/bash with root privileges...

CVE-2026-44933

CVE-2026-44933 affects the libzypp component’s PluginScript during plugin loading. The vulnerability arises when a plugin is chrooted to repoManagerRoot; if the target is “/” (which is common in standard configurations or when using --root), the chroot becomes a no-op, but the traversed path can ...

EUVD-2026-31074

PluginScript attempts to chroot the plugin to the repoManagerRoot, this root is frequently / the system root in standard configurations or when using --root. If the chroot target is /, it is a no-op, allowing the traversed path to execute host binaries like /bin/bash with root privileges...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition via the timing window between path resolution and syscall execution in operations such as chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat. An attacker...

Authentication Bypass by Alternate Name

Overview Affected versions of this package are vulnerable to Authentication Bypass by Alternate Name via the hostname-based access control list enforcement process when configured with chroot. An attacker can gain unauthorized access by manipulating the PTR record for their source IP address,...