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) file-symlink race. Successful exploitation allows the attacker to gain ownership of arbitrary root-owned files or directories, leading to root access. This vulnerability requires an external management layer (e.g., libvirt) to trigger the affected code path.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.3 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-12080
https://bugzilla.redhat.com/show_bug.cgi?id=2499603
https://gitlab.com/qemu-project/qemu/-/work_items/3929

Configurations

No configuration.

History

20 Jul 2026, 14:16

Type	Values Removed	Values Added
References		() https://gitlab.com/qemu-project/qemu/-/work_items/3929 -

20 Jul 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-20 13:16

Updated : 2026-07-21 18:31

NVD link : CVE-2026-12080

Mitre link : CVE-2026-12080

CVE.ORG link : CVE-2026-12080

JSON object : View

Products Affected

No product.

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

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