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

Status: published. Published: 2026-08-21. Updated: 2026-11-05.

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.

## Remediation

- fix: github.com/lxc/incus/v7/cmd/incusd (Go): OSV reports a fixed version 7.2.0. Check the advisory for supported release branches. (source: OSV GHSA-f6m5-xw2g-xc4x) — https://github.com/advisories/GHSA-f6m5-xw2g-xc4x

## Affected products and versions

- lxc / incus: < 7.2.0 (affected). Source: CNA: GitHub_M
- canonical / lxd: >= 4.0.0, < 4.0.11 (affected); >= 5.0.0, < 5.0.7 (affected); >= 5.1.0, < 5.21.5 (affected); >= 6.0.0, < 6.9.0 (affected). Source: CNA: GitHub_M
-  / github.com/lxc/incus/v7/cmd/incusd (github.com/lxc/incus/v7/cmd/incusd): ≥ 0; < 7.2.0 (affected, semver); OSV events: introduced 0; fixed 7.2.0. Source: OSV GHSA-f6m5-xw2g-xc4x

## Severity and prioritization

- CVSS 3.1: 9.9 (critical); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: 0.73% as of 2026-11-05; percentile 54.44%

- SSVC: exploitation poc; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-20

## Exploit evidence

- exploit: https://github.com/lxc/incus/security/advisories/GHSA-f6m5-xw2g-xc4x (ADP: CISA-ADP)

## References

- https://github.com/lxc/incus/security/advisories/GHSA-f6m5-xw2g-xc4x (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/canonical/lxd/security/advisories/GHSA-pjff-c2wc-f6jm (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/lxc/incus/security/advisories/GHSA-f6m5-xw2g-xc4x (ADP: CISA-ADP; exploit)

- https://github.com/advisories/GHSA-f6m5-xw2g-xc4x (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-f6m5-xw2g-xc4x (OSV / GitHub Security Advisories; osv)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-48769; retrieved 2026-11-06; source updated 2026-11-05

- OSV / GitHub Security Advisories (partial: 1/2 referenced advisories verified): https://osv.dev/vulnerability/GHSA-f6m5-xw2g-xc4x; retrieved 2026-11-06; source updated 2026-07-07

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-48769; retrieved 2026-11-06; source updated Not reported

Revision: 970ddb07678fdf9637cccd1c7d65b0151dcba69fb82622061354f99175b81b56

Canonical: https://y2.dev/cve/CVE-2026-48769

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