CVE-2025-54286Public exploitNetwork attack vector

Instance creation via cross-site JSON form submission

Published Oct 2, 2025 · Updated Oct 2, 2025

CSRF in Canonical LXD-UI on affected Linux releases allows remote attackers to create and start instances through a victim's browser. The LXD API parses text/plain and application/x-www-form-urlencoded request bodies as JSON, allowing a cross-site HTML form to submit an authenticated instance-creation request. Exploitation requires a victim who is connected with client certificate authentication, can create instances in the targeted project, and visits an attacker-controlled page; cloud-init can then execute commands inside a created container.

CVSS severity7.5
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

CSRF in Canonical LXD-UI on affected Linux releases allows remote attackers to create and start instances through a victim's browser. The LXD API parses text/plain and application/x-www-form-urlencoded request bodies as JSON, allowing a cross-site HTML form to submit an authenticated instance-creation request. Exploitation requires a victim who is connected with client certificate authentication, can create instances in the targeted project, and visits an attacker-controlled page; cloud-init can then execute commands inside a created container.

The record

CVE
CVE-2025-54286
Published
Oct 2, 2025
Updated
Oct 2, 2025
Vendor
Canonical
Product
LXD
Classifications
CWE-352, CAPEC-62, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.0 <5.0.5
  2. Affected versionversion=5.21 <5.21.4
  3. Affected versionversion=6.0 <6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Canonical · LXDversion=5.0 <5.0.5; version=5.21 <5.21.4; version=6.0 <6.5

Published CVSS scores

7.5Canonical Ltd.CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.3CanonicalCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1189Drive-by Compromise

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo