CVE-2026-85526

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 ImpacttotalSuccessful exploitation gives total 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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-29.

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

2026-09-29 03:55Z1 MO AGO

Reserved

2026-09-04

Assigning CNA

canonical

Record state

PUBLISHED

Severity

Critical (CVSS 9.9)

CNA CVSS vector

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

Weaknesses

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

Data version

5.2

Document digest

1c058955cfbad4a1bc87dadeb462bdd028b61227f0d35be1c53ff1275170f387

• github.comhttps://github.com/canonical/lxd/security/advisories/GHSA-h85r-gjgx-g2rvvendor-advisoryissue-tracking
• github.comhttps://github.com/canonical/lxd-private/pull/87patch
• github.comhttps://github.com/canonical/lxd-private/pull/105patch
• github.comhttps://github.com/canonical/lxd-private/pull/104patch
• github.comhttps://github.com/canonical/lxd-private/pull/103patch
• github.comhttps://github.com/canonical/lxd-private/pull/84patch