CVE-2026-34178

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

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

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

2026-04-09 09:18Z4 MO AGO

Last updated

2026-04-09 11:55Z4 MO AGO

Reserved

2026-03-26

Assigning CNA

canonical

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

489a2c989aa0267a0926efc1bdd668676261d4fc5816066d4359b30d2ce52adb

• github.comImporting a crafted backup leads to project restriction bypasshttps://github.com/canonical/lxd/security/advisories/GHSA-q96j-3fmm-7fv4vdb-entryvendor-advisory
• github.comImport: Create backup config from indexhttps://github.com/canonical/lxd/pull/17921patchissue-tracking