CVE-2026-12080: UNIX Symbolic Link (Symlink) Following in Red Hat Red Hat Enterprise Linux 10
Severity: highType: VulnerabilityCVE-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.
EPSS 0.2%top 92%
CVE-2026-12080: UNIX Symbolic Link (Symlink) Following in Red Hat Red Hat Enterprise Linux 10
0
HighVulnerabilityCVE-2026-12080gcveosvubuntu-cve-2026-12080cve-2026-12080ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-pro-18-04-ltsubuntu-pro-20-04-ltsubuntu-22-04-ltsubuntu-24-04-ltsubuntu-26-04-ltscsafmicrosoft-security-response-cecwe-61
Published: 07/20/2026 (07/20/2026, 12:40:45 UTC)
Source: GCVE Database
Vendor/Project: Red Hat
Product: Red Hat Enterprise Linux 10
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.
CVSS v3.1
Score 7.3high
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Affected software
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra-legacy/trustyAffected versions
=1.5.0+dfsg-3ubuntu5=1.5.0+dfsg-3ubuntu6=1.6.0+dfsg-2ubuntu1=1.6.0+dfsg-2ubuntu2=1.6.0+dfsg-2ubuntu3=1.6.0+dfsg-2ubuntu4=1.7.0+dfsg-2ubuntu1=1.7.0+dfsg-2ubuntu2=1.7.0+dfsg-2ubuntu3=1.7.0+dfsg-2ubuntu4=1.7.0+dfsg-2ubuntu5=1.7.0+dfsg-2ubuntu7=1.7.0+dfsg-2ubuntu8=1.7.0+dfsg-2ubuntu9=1.7.0+dfsg-3ubuntu1~ppa1=1.7.0+dfsg-3ubuntu1=1.7.0+dfsg-3ubuntu2=1.7.0+dfsg-3ubuntu3=1.7.0+dfsg-3ubuntu4=1.7.0+dfsg-3ubuntu5=1.7.0+dfsg-3ubuntu6=1.7.0+dfsg-3ubuntu7=2.0.0~rc1+dfsg-0ubuntu1=2.0.0~rc1+dfsg-0ubuntu2=2.0.0~rc1+dfsg-0ubuntu3=2.0.0~rc1+dfsg-0ubuntu3.1=2.0.0+dfsg-2ubuntu1=2.0.0+dfsg-2ubuntu1.1=2.0.0+dfsg-2ubuntu1.2=2.0.0+dfsg-2ubuntu1.3=2.0.0+dfsg-2ubuntu1.5=2.0.0+dfsg-2ubuntu1.6=2.0.0+dfsg-2ubuntu1.7=2.0.0+dfsg-2ubuntu1.8=2.0.0+dfsg-2ubuntu1.9=2.0.0+dfsg-2ubuntu1.10=2.0.0+dfsg-2ubuntu1.11=2.0.0+dfsg-2ubuntu1.13=2.0.0+dfsg-2ubuntu1.14=2.0.0+dfsg-2ubuntu1.15=2.0.0+dfsg-2ubuntu1.16=2.0.0+dfsg-2ubuntu1.17=2.0.0+dfsg-2ubuntu1.18=2.0.0+dfsg-2ubuntu1.19=2.0.0+dfsg-2ubuntu1.20=2.0.0+dfsg-2ubuntu1.21=2.0.0+dfsg-2ubuntu1.22=2.0.0+dfsg-2ubuntu1.24=2.0.0+dfsg-2ubuntu1.25=2.0.0+dfsg-2ubuntu1.26=2.0.0+dfsg-2ubuntu1.27=2.0.0+dfsg-2ubuntu1.28=2.0.0+dfsg-2ubuntu1.29=2.0.0+dfsg-2ubuntu1.30=2.0.0+dfsg-2ubuntu1.31=2.0.0+dfsg-2ubuntu1.32=2.0.0+dfsg-2ubuntu1.33=2.0.0+dfsg-2ubuntu1.34=2.0.0+dfsg-2ubuntu1.35=2.0.0+dfsg-2ubuntu1.36=2.0.0+dfsg-2ubuntu1.38=2.0.0+dfsg-2ubuntu1.39=2.0.0+dfsg-2ubuntu1.40=2.0.0+dfsg-2ubuntu1.41=2.0.0+dfsg-2ubuntu1.42=2.0.0+dfsg-2ubuntu1.43=2.0.0+dfsg-2ubuntu1.44=2.0.0+dfsg-2ubuntu1.45=2.0.0+dfsg-2ubuntu1.46=2.0.0+dfsg-2ubuntu1.47=2.0.0+dfsg-2ubuntu1.47+esm1=2.0.0+dfsg-2ubuntu1.47+esm2=2.0.0+dfsg-2ubuntu1.47+esm3=2.0.0+dfsg-2ubuntu1.47+esm4=2.0.0+dfsg-2ubuntu1.47+esm6
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra-legacy/xenialAffected versions
=1:2.3+dfsg-5ubuntu9=1:2.3+dfsg-5ubuntu10=1:2.4+dfsg-4ubuntu1=1:2.4+dfsg-4ubuntu2=1:2.4+dfsg-4ubuntu3=1:2.4+dfsg-5ubuntu3=1:2.5+dfsg-1ubuntu2=1:2.5+dfsg-1ubuntu3=1:2.5+dfsg-1ubuntu4=1:2.5+dfsg-1ubuntu5=1:2.5+dfsg-5ubuntu1=1:2.5+dfsg-5ubuntu2=1:2.5+dfsg-5ubuntu4=1:2.5+dfsg-5ubuntu6=1:2.5+dfsg-5ubuntu7=1:2.5+dfsg-5ubuntu10=1:2.5+dfsg-5ubuntu10.1=1:2.5+dfsg-5ubuntu10.2=1:2.5+dfsg-5ubuntu10.3=1:2.5+dfsg-5ubuntu10.4=1:2.5+dfsg-5ubuntu10.5=1:2.5+dfsg-5ubuntu10.6=1:2.5+dfsg-5ubuntu10.7=1:2.5+dfsg-5ubuntu10.8=1:2.5+dfsg-5ubuntu10.9=1:2.5+dfsg-5ubuntu10.10=1:2.5+dfsg-5ubuntu10.11=1:2.5+dfsg-5ubuntu10.13=1:2.5+dfsg-5ubuntu10.14=1:2.5+dfsg-5ubuntu10.15=1:2.5+dfsg-5ubuntu10.16=1:2.5+dfsg-5ubuntu10.20=1:2.5+dfsg-5ubuntu10.21=1:2.5+dfsg-5ubuntu10.22=1:2.5+dfsg-5ubuntu10.24=1:2.5+dfsg-5ubuntu10.25=1:2.5+dfsg-5ubuntu10.26=1:2.5+dfsg-5ubuntu10.28=1:2.5+dfsg-5ubuntu10.29=1:2.5+dfsg-5ubuntu10.30=1:2.5+dfsg-5ubuntu10.31=1:2.5+dfsg-5ubuntu10.32=1:2.5+dfsg-5ubuntu10.33=1:2.5+dfsg-5ubuntu10.34=1:2.5+dfsg-5ubuntu10.35=1:2.5+dfsg-5ubuntu10.36=1:2.5+dfsg-5ubuntu10.37=1:2.5+dfsg-5ubuntu10.38=1:2.5+dfsg-5ubuntu10.39=1:2.5+dfsg-5ubuntu10.40=1:2.5+dfsg-5ubuntu10.41=1:2.5+dfsg-5ubuntu10.42=1:2.5+dfsg-5ubuntu10.43=1:2.5+dfsg-5ubuntu10.44=1:2.5+dfsg-5ubuntu10.45=1:2.5+dfsg-5ubuntu10.46=1:2.5+dfsg-5ubuntu10.47=1:2.5+dfsg-5ubuntu10.48=1:2.5+dfsg-5ubuntu10.49=1:2.5+dfsg-5ubuntu10.51=1:2.5+dfsg-5ubuntu10.51+esm1=1:2.5+dfsg-5ubuntu10.51+esm2=1:2.5+dfsg-5ubuntu10.51+esm3=1:2.5+dfsg-5ubuntu10.51+esm4
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra/bionicAffected versions
=1:2.10+dfsg-0ubuntu3=1:2.10+dfsg-0ubuntu4=1:2.10+dfsg-0ubuntu5=1:2.11+dfsg-1ubuntu1=1:2.11+dfsg-1ubuntu2=1:2.11+dfsg-1ubuntu4=1:2.11+dfsg-1ubuntu5=1:2.11+dfsg-1ubuntu6=1:2.11+dfsg-1ubuntu7=1:2.11+dfsg-1ubuntu7.1=1:2.11+dfsg-1ubuntu7.2=1:2.11+dfsg-1ubuntu7.3=1:2.11+dfsg-1ubuntu7.4=1:2.11+dfsg-1ubuntu7.5=1:2.11+dfsg-1ubuntu7.6=1:2.11+dfsg-1ubuntu7.7=1:2.11+dfsg-1ubuntu7.8=1:2.11+dfsg-1ubuntu7.9=1:2.11+dfsg-1ubuntu7.10=1:2.11+dfsg-1ubuntu7.12=1:2.11+dfsg-1ubuntu7.13=1:2.11+dfsg-1ubuntu7.14=1:2.11+dfsg-1ubuntu7.15=1:2.11+dfsg-1ubuntu7.17=1:2.11+dfsg-1ubuntu7.18=1:2.11+dfsg-1ubuntu7.19=1:2.11+dfsg-1ubuntu7.20=1:2.11+dfsg-1ubuntu7.21=1:2.11+dfsg-1ubuntu7.22=1:2.11+dfsg-1ubuntu7.23=1:2.11+dfsg-1ubuntu7.25=1:2.11+dfsg-1ubuntu7.26=1:2.11+dfsg-1ubuntu7.27=1:2.11+dfsg-1ubuntu7.28=1:2.11+dfsg-1ubuntu7.29=1:2.11+dfsg-1ubuntu7.31=1:2.11+dfsg-1ubuntu7.32=1:2.11+dfsg-1ubuntu7.33=1:2.11+dfsg-1ubuntu7.34=1:2.11+dfsg-1ubuntu7.35=1:2.11+dfsg-1ubuntu7.36=1:2.11+dfsg-1ubuntu7.37=1:2.11+dfsg-1ubuntu7.38=1:2.11+dfsg-1ubuntu7.39=1:2.11+dfsg-1ubuntu7.40=1:2.11+dfsg-1ubuntu7.41=1:2.11+dfsg-1ubuntu7.42=1:2.11+dfsg-1ubuntu7.42+esm1=1:2.11+dfsg-1ubuntu7.42+esm2=1:2.11+dfsg-1ubuntu7.42+esm5=1:2.11+dfsg-1ubuntu7.42+esm6
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=esm-infra/focalAffected versions
=1:4.0+dfsg-0ubuntu9=1:4.0+dfsg-0ubuntu10=1:4.2-1ubuntu1=1:4.2-1ubuntu2=1:4.2-3ubuntu1=1:4.2-3ubuntu2=1:4.2-3ubuntu3=1:4.2-3ubuntu4=1:4.2-3ubuntu5=1:4.2-3ubuntu6=1:4.2-3ubuntu6.1=1:4.2-3ubuntu6.2=1:4.2-3ubuntu6.3=1:4.2-3ubuntu6.4=1:4.2-3ubuntu6.5=1:4.2-3ubuntu6.6=1:4.2-3ubuntu6.7=1:4.2-3ubuntu6.8=1:4.2-3ubuntu6.9=1:4.2-3ubuntu6.10=1:4.2-3ubuntu6.11=1:4.2-3ubuntu6.12=1:4.2-3ubuntu6.14=1:4.2-3ubuntu6.15=1:4.2-3ubuntu6.16=1:4.2-3ubuntu6.17=1:4.2-3ubuntu6.18=1:4.2-3ubuntu6.19=1:4.2-3ubuntu6.21=1:4.2-3ubuntu6.23=1:4.2-3ubuntu6.24=1:4.2-3ubuntu6.25=1:4.2-3ubuntu6.26=1:4.2-3ubuntu6.27=1:4.2-3ubuntu6.28=1:4.2-3ubuntu6.29=1:4.2-3ubuntu6.30=1:4.2-3ubuntu6.30+esm1=1:4.2-3ubuntu6.30+esm2=1:4.2-3ubuntu6.30+esm3
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=jammyAffected versions
=1:6.0+dfsg-2expubuntu1=1:6.0+dfsg-2expubuntu2=1:6.0+dfsg-2expubuntu4=1:6.2+dfsg-2ubuntu5=1:6.2+dfsg-2ubuntu6=1:6.2+dfsg-2ubuntu6.1=1:6.2+dfsg-2ubuntu6.2=1:6.2+dfsg-2ubuntu6.3=1:6.2+dfsg-2ubuntu6.4=1:6.2+dfsg-2ubuntu6.5=1:6.2+dfsg-2ubuntu6.6=1:6.2+dfsg-2ubuntu6.7=1:6.2+dfsg-2ubuntu6.8=1:6.2+dfsg-2ubuntu6.9=1:6.2+dfsg-2ubuntu6.10=1:6.2+dfsg-2ubuntu6.11=1:6.2+dfsg-2ubuntu6.12=1:6.2+dfsg-2ubuntu6.13=1:6.2+dfsg-2ubuntu6.14=1:6.2+dfsg-2ubuntu6.15=1:6.2+dfsg-2ubuntu6.16=1:6.2+dfsg-2ubuntu6.17=1:6.2+dfsg-2ubuntu6.18=1:6.2+dfsg-2ubuntu6.19=1:6.2+dfsg-2ubuntu6.21=1:6.2+dfsg-2ubuntu6.22=1:6.2+dfsg-2ubuntu6.23=1:6.2+dfsg-2ubuntu6.24=1:6.2+dfsg-2ubuntu6.25=1:6.2+dfsg-2ubuntu6.26=1:6.2+dfsg-2ubuntu6.27=1:6.2+dfsg-2ubuntu6.28=1:6.2+dfsg-2ubuntu6.29=1:6.2+dfsg-2ubuntu6.30=1:6.2+dfsg-2ubuntu6.31
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=nobleAffected versions
=1:8.0.4+dfsg-1ubuntu3=1:8.0.4+dfsg-1ubuntu4=1:8.0.4+dfsg-1ubuntu5=1:8.1.3+ds-1ubuntu2=1:8.2.1+ds-1ubuntu1=1:8.2.1+ds-1ubuntu8=1:8.2.1+ds-1ubuntu9=1:8.2.2+ds-0ubuntu1=1:8.2.2+ds-0ubuntu1.2=1:8.2.2+ds-0ubuntu1.4=1:8.2.2+ds-0ubuntu1.5=1:8.2.2+ds-0ubuntu1.6=1:8.2.2+ds-0ubuntu1.7=1:8.2.2+ds-0ubuntu1.8=1:8.2.2+ds-0ubuntu1.9=1:8.2.2+ds-0ubuntu1.10=1:8.2.2+ds-0ubuntu1.11=1:8.2.2+ds-0ubuntu1.12=1:8.2.2+ds-0ubuntu1.13=1:8.2.2+ds-0ubuntu1.14=1:8.2.2+ds-0ubuntu1.15=1:8.2.2+ds-0ubuntu1.16=1:8.2.2+ds-0ubuntu1.17=1:8.2.2+ds-0ubuntu1.18
qemu
pkg:deb/ubuntu/qemu?arch=source&distro=resoluteAffected versions
=1:10.1.0+ds-5ubuntu2=1:10.1.0+ds-5ubuntu3=1:10.1.0+ds-5ubuntu4=1:10.1.0+ds-5ubuntu5=1:10.2.1+ds-1ubuntu1=1:10.2.1+ds-1ubuntu2=1:10.2.1+ds-1ubuntu3=1:10.2.1+ds-1ubuntu3.1=1:10.2.1+ds-1ubuntu3.2
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-12080
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a74cf9cbf8831d5391b0126
Added to database: 08/06/2026, 18:17:00 UTC
Last updated: 09/21/2026, 22:01:32 UTC
Views: 98
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