CVE-2026-53657: CWE-276: Incorrect Default Permissions in lima-vm lima
Lima versions prior to 2.1.3 running with the qemu driver have incorrect default permissions on the guest agent socket (/run/lima-guestagent.sock). This allows any arbitrary user inside the VM to access the socket and potentially execute commands with root privileges by tunneling through privileged Unix sockets such as those used by D-Bus. The vulnerability is fixed in version 2.1.3.
AI Analysis
Technical Summary
Lima is a tool that launches Linux virtual machines, typically on macOS, for running containerd. In versions before 2.1.3, when running with the qemu driver and with the guest agent enabled, the socket /run/lima-guestagent.sock is accessible by arbitrary users inside the VM due to incorrect default permissions. This socket provides a tunnel to arbitrary addresses, including privileged Unix sockets like D-Bus, enabling privilege escalation to root within the VM. The issue is addressed in version 2.1.3.
Potential Impact
An arbitrary user inside the vulnerable Lima VM can gain root privileges by accessing the guest agent socket and tunneling commands to privileged daemons. This leads to complete compromise of the VM's security context, affecting confidentiality, integrity, and availability within the VM.
Mitigation Recommendations
Upgrade Lima to version 2.1.3 or later, where this vulnerability is fixed. No other official remediation or temporary workaround is indicated. Patch status is confirmed fixed in 2.1.3.
CVE-2026-53657: CWE-276: Incorrect Default Permissions in lima-vm lima
Description
Lima versions prior to 2.1.3 running with the qemu driver have incorrect default permissions on the guest agent socket (/run/lima-guestagent.sock). This allows any arbitrary user inside the VM to access the socket and potentially execute commands with root privileges by tunneling through privileged Unix sockets such as those used by D-Bus. The vulnerability is fixed in version 2.1.3.
CVSS v3.1
Score 8.2high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Lima is a tool that launches Linux virtual machines, typically on macOS, for running containerd. In versions before 2.1.3, when running with the qemu driver and with the guest agent enabled, the socket /run/lima-guestagent.sock is accessible by arbitrary users inside the VM due to incorrect default permissions. This socket provides a tunnel to arbitrary addresses, including privileged Unix sockets like D-Bus, enabling privilege escalation to root within the VM. The issue is addressed in version 2.1.3.
Potential Impact
An arbitrary user inside the vulnerable Lima VM can gain root privileges by accessing the guest agent socket and tunneling commands to privileged daemons. This leads to complete compromise of the VM's security context, affecting confidentiality, integrity, and availability within the VM.
Mitigation Recommendations
Upgrade Lima to version 2.1.3 or later, where this vulnerability is fixed. No other official remediation or temporary workaround is indicated. Patch status is confirmed fixed in 2.1.3.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T20:50:36.876Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a511ed468715ace43d68960
Added to database: 07/10/2026, 16:33:24 UTC
Last enriched: 07/10/2026, 16:48:31 UTC
Last updated: 07/10/2026, 16:48:31 UTC
Views: 3
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