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.

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-ccjc-4qc3-jxqc Incus has an arbitrary file write via path traversal in S3 multipart upload
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 26 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-22
References
Metrics threat_severity

None

threat_severity

Critical


Fri, 21 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Lxc
Lxc incus
Vendors & Products Lxc
Lxc incus

Fri, 21 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
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.
Title Incus has an arbitrary file write via path traversal in S3 multipart upload
Weaknesses CWE-73
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-21T15:36:43.317Z

Reserved: 2026-05-22T19:39:05.355Z

Link: CVE-2026-48753

cve-icon Vulnrichment

Updated: 2026-08-21T15:36:38.592Z

cve-icon NVD

Status : Received

Published: 2026-08-21T15:16:40.800

Modified: 2026-08-21T16:17:17.647

Link: CVE-2026-48753

cve-icon Redhat

Severity : Critical

Publid Date: 2026-08-21T14:34:39Z

Links: CVE-2026-48753 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T14:00:06Z

Weaknesses