CVE-2026-86334

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 25.9% of scored records. A rank, not a probability.

NVD base score

4.2 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

NVD analysis status

Deferred. NVD last modified this record on 2026-09-28.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-28 13:21Z1 MO AGO

Last updated

2026-09-28 17:56Z1 MO AGO

Reserved

2026-09-07

Assigning CNA

canonical

Record state

PUBLISHED

Severity

Medium (CVSS 4.2)

CNA CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

ac897f52143f810a22788cd53425020c6b8c99252e0cf461cf693f8e7f5c4a22

• github.comhttps://github.com/canonical/lxd/security/advisories/GHSA-g4cm-f533-78hqvendor-advisoryissue-tracking
• github.comhttps://github.com/canonical/lxd/pull/18977patch
• github.comhttps://github.com/canonical/lxd/pull/18976patch
• github.comhttps://github.com/canonical/lxd/pull/18974patch
• github.comhttps://github.com/canonical/lxd/pull/18975patch
• github.comhttps://github.com/canonical/lxd/pull/18940patch