CVE-2026-86335Public exploitNetwork attack vectorHinoki check available

Cross-project private image disclosure via unchecked fingerprint reuse

Published Sep 28, 2026 · Updated Sep 28, 2026

Missing authorization in Canonical LXD before 5.0.10, 5.21.8, or 6.10 lets remote authenticated users import other projects' private images. In imageDownload, GetImageFromAnyProject reuses a locally matching fingerprint without checking whether the source image is public or the caller can view it. The caller needs image-creation or instance-creation rights in a restricted project and prior knowledge of the private image fingerprint; the copied image's properties and files then become accessible in the caller's project.

CVSS severity6.3
Medium
EPSS probability0.22%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in Canonical LXD before 5.0.10, 5.21.8, or 6.10 lets remote authenticated users import other projects' private images. In imageDownload, GetImageFromAnyProject reuses a locally matching fingerprint without checking whether the source image is public or the caller can view it. The caller needs image-creation or instance-creation rights in a restricted project and prior knowledge of the private image fingerprint; the copied image's properties and files then become accessible in the caller's project.

The record

CVE
CVE-2026-86335
Published
Sep 28, 2026
Updated
Sep 28, 2026
Vendor
Canonical Ltd.
Product
LXD
Classifications
T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0 <5.0.10
  2. Affected versionversion=5.21.0 <5.21.8
  3. Affected versionversion=6.0 <6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Canonical Ltd. · LXDversion=4.0 <5.0.10; version=5.21.0 <5.21.8; version=6.0 <6.10

Published CVSS scores

6.3Canonical GitHub Security AdvisoryCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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