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Vulnerabilities CVE-2026-12080

CVE-2026-12080

High
Open
TLP:CLEAR

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

NVD CVE.org
Critical Infrastructure

AI Analysis

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Description

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.

Details

CVSS Score
7.3
EPSS Score
0.14%

3.8th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Confidence
90%
Published
Jul 20, 2026
Last Modified
Aug 24, 2026
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