CVE-2026-48753

Critical

Open

TLP:CLEAR

Incus has an arbitrary file write via path traversal in S3 multipart upload

NVD CVE.org

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Description

Incus is a system container and virtual machine manager. Prior to version 7.1.0, the S3 protocol upload endpoint is vulnerable to path traversal and allows creation of arbitrary files on the host. This behavior could lead to arbitrary command execution. Version 7.1.0 fixes the issue.

Details

CVSS Score: 9.9
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Confidence: 90%
Published: Aug 21, 2026
Last Modified: Aug 21, 2026

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