QEMU Guest Agent Authorized Keys Symlink Privilege Escalation

QEMU Guest Agent contains a local privilege escalation vulnerability in its guest-ssh-add-authorized-keys handler. An unprivileged guest user can pre-stage symbolic links that cause root-run path-based ownership changes when an operator adds an SSH key...

qemu-kvm: qemu-guest-agent: Local privilege escalation via symlink attack in guest-ssh-add-authorized-keys

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

EulerOS 2.0 SP15 : qemu (EulerOS-SA-2026-3947)

According to the versions of the qemu packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command...

EulerOS 2.0 SP15 : qemu (EulerOS-SA-2026-4013)

According to the versions of the qemu packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command...

OESA-2026-4086 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. Th...

OESA-2026-4087 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. Th...

OESA-2026-4085 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. Th...

OESA-2026-4084 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. Th...

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A proof of concept exploit for a local privilege escalation vulnerability in QEMU Guest Agent version 11.0.3. The vulnerability exists in the guest-ssh-add-authorized-keys handler, where improper handling of symbolic links allows an unprivileged guest user to redirect root-privileged file...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

CVE-2026-12080

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

CVE-2026-12080: UNIX Symbolic Link (Symlink) Following

A flaw was found in the QEMU Guest Agent qga. A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use TOCTOU...

PT-2026-61584

Name of the Vulnerable Software and Affected Versions QEMU Guest Agent affected versions not specified Description A flaw exists in the QEMU Guest Agent qga within the guest-ssh-add-authorized-keys command handler. A local unprivileged user can exploit this by manipulating symbolic links through ...

[SECURITY] Fedora 44 Update: ksshaskpass-6.6.4-1.fc44

A ssh-add helper that uses kwallet and kpassworddialog...

PT-2026-33683

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9...

SUSE CVE-2026-24126

Weblate is a web based localization tool. Prior to 5.16.0, the SSH management console did not validate the passed input while adding the SSH host key, which could lead to an argument injection to ssh-add. Version 5.16.0 fixes the issue. As a workaround, properly limit access to the management...

PYSEC-2026-2309

Weblate is a web based localization tool. Prior to 5.16.0, the SSH management console did not validate the passed input while adding the SSH host key, which could lead to an argument injection to ssh-add. Version 5.16.0 fixes the issue. As a workaround, properly limit access to the management...

CVE-2026-24126

Weblate is a web based localization tool. Prior to 5.16.0, the SSH management console did not validate the passed input while adding the SSH host key, which could lead to an argument injection to ssh-add. Version 5.16.0 fixes the issue. As a workaround, properly limit access to the management...

CVE-2026-24126: Improper Neutralization of Argument Delimiters in a Command

Weblate is a web based localization tool. Prior to 5.16.0, the SSH management console did not validate the passed input while adding the SSH host key, which could lead to an argument injection to ssh-add. Version 5.16.0 fixes the issue. As a workaround, properly limit access to the management...