6.3

CVE-2026-86335: canonical lxd Missing Authorization

CVSS: 6.3v3.1MediumDeferred
AliasesUBUNTU-CVE-2026-86335DEBIAN-CVE-2026-86335
Published 28-09-2026Last modified 28-09-2026
Open JSON

Vulnerability summary

CVE-2026-86335 is a medium (CVSS 6.3) Missing Authorization vulnerability in canonical lxd. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-09-2026
    PublishedVulnerability first disclosed.
  2. 28-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

29-09-202618-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Canonical1 product
  • lxd≥ 5.21.0, < 5.21.8 | ≥ 6.0, < 6.10 | ≥ 4.0, < 5.0.10
Debian1 product
  • lxdAll versions (No fix recorded)
Ubuntu1 product
  • lxdAll versions (No fix recorded)

3 vendors · 3 products

References

8 links