---
title: "CVE-2026-115377: Incus - Arbitrary File Write"
description: "Incus < 6.0.7, 6.1.0 < 7.0.2, and 7.1.0 < 7.5.0 contain an arbitrary file write vulnerability caused by planting symlinks in transferred volumes during migration, letting attackers write files as root for full host compromise, exploit requires crafted migration sources."
url: https://panop.io/threat-heartbeat/CVE-2026-115377/
---

# CVE-2026-115377 Incus - Arbitrary File Write

Incus < 6.0.7, 6.1.0 < 7.0.2, and 7.1.0 < 7.5.0 contain an arbitrary file write vulnerability caused by planting symlinks in transferred volumes during migration, letting attackers write files as root for full host compromise, exploit requires crafted migration sources.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-115377)

## Details

Type

Arbitrary File Write

Impact

File System Write, Remote Code Execution

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

22 October 2026

Updated

23 October 2026

Weakness

[CWE-59](https://cwe.mitre.org/data/definitions/59.html)

## Vendor fix

Update to version 6.0.7, 7.0.2, 7.5.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-115377](https://nvd.nist.gov/vuln/detail/CVE-2026-115377)
- [https://www.vulncheck.com/advisories/incus-before-6.0.7-6.1.0-before-7.0.2-and-7.1.0-before-7.5.0-arbitrary-file-write-via-symlink-in-migration-stream](https://www.vulncheck.com/advisories/incus-before-6.0.7-6.1.0-before-7.0.2-and-7.1.0-before-7.5.0-arbitrary-file-write-via-symlink-in-migration-stream)
- [https://github.com/lxc/incus/security/advisories/GHSA-579w-c4rw-c8q3](https://github.com/lxc/incus/security/advisories/GHSA-579w-c4rw-c8q3)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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