Answer in brief
CVE-2026-48754 records a Low severity (CVSS 2.1) vulnerability in Incus: Nil-pointer dereference in createDependentVolumesFromBackup on disk.{Volume,VolumeSnapshots,Pool}. 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/v6 (go), github.com/lxc/incus/v7 (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 2.1. 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/v6 (go), github.com/lxc/incus/v7 (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| lxc/incusgeneric | < 7.1.0 | Not reported |
| github.com/lxc/incusgo | >=0 | Not reported |
| github.com/lxc/incus/v6go | >=0 | Not reported |
| github.com/lxc/incus/v7go | >=0 <7.1.0 | 7.1.0 |
| github.com/lxc/incus/v7/cmd/incusdgo | <7.1.0 | 7.1.0 |
Published upstream
Aug 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 26, 2026
Incus is a system container and virtual machine manager. Prior to version 7.1.0, `(*backend).createDependentVolumesFromBackup` in `internal/server/storage/backend.go` contains a cluster of unguarded pointer derefs on every dependent-volume entry's `VolumeSnapshots[i]`, `Volume`, and `Pool` sub-fields. An authenticated user with `can_create_instances` permission on any project can crash the `incusd` daemon by uploading an instance backup tarball whose `dependent_volumes[*]` block contains a nil snapshot pointer (or omits `volume:` / `pool:`). This is a sibling-field variant of the 2026-05-04 batch fix `d768f81c0a1d985f35ae56219519822b080bf5e3` ("Properly check dependent volumes on import"). That commit added `if disk == nil` at the top of the outer loop, but did not guard the four sub-pointer fields the loop body dereferences naked. Version 7.1.0 contains an updated patch.
Quoted source text, attributed separately from HOL analysis.