Answer in brief
CVE-2026-55621 records a High severity (CVSS 7.7) vulnerability in Incus has a project restriction bypass for custom volume copy across projects. The current sources do not mark it as known exploited. The current feed maps lxc/incus (generic), github.com/lxc/incus (go), github.com/lxc/incus (go), github.com/lxc/incus/v6 (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps lxc/incus (generic), github.com/lxc/incus (go), github.com/lxc/incus (go), github.com/lxc/incus/v6 (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| lxc/incusgeneric | <7.2.0 | 7.2.0 |
| github.com/lxc/incusgo | <=0.7.0 | Not reported |
| github.com/lxc/incusgo | >=0 | Not reported |
| github.com/lxc/incus/v6go | <=6.23.0 | Not reported |
| github.com/lxc/incus/v6go | >=0 | Not reported |
| github.com/lxc/incus/v7go | <7.2.0 | 7.2.0 |
| github.com/lxc/incus/v7go | >=0 <7.2.0 | 7.2.0 |
Published upstream
Aug 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 21, 2026
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.
Quoted source text, attributed separately from HOL analysis.