Secuno
ENNL
Book demo

CVE-2026-63293

Canonical Lxd vulnerability

9.9 CRITICALPublic exploitEPSS 0.59%
  1. Published12 Aug 2026

Description

A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations on the host system. When importing or unpacking an image archive, LXD fails to validate whether the metadata.yaml file is a symbolic link. An attacker can exploit this flaw by providing a crafted image archive with a symlinked metadata.yaml file pointing to target file paths on the host system.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Canonical Lxd≥ 4.0.0 < 4.0.12

Remediation

Fixed in
Canonical Lxd≥ 4.0.12

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1078108.1
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0,…
CVE-2026-890918.8
A flaw was found in ansible-core. When installing a collection with `ansible-galaxy…
CVE-2026-1065008.5
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1,…
CVE-2026-1064868.5
Backstage is an open framework for building developer portals. Prior to 0.3.10 in…
CVE-2026-1018949.1
The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the…
CVE-2026-877999.9
Improper link resolution in the migration receive path in Canonical LXD versions 4.0…

Frequently asked

Is CVE-2026-63293 being actively exploited?

CVE-2026-63293 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.59%.

How severe is CVE-2026-63293?

CVE-2026-63293 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.59% probability of exploitation.

Which products are affected by CVE-2026-63293?

Affected products include Canonical Lxd.

How do I fix CVE-2026-63293?

Upgrade affected software to a fixed version, for example Canonical Lxd 4.0.12 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-63293 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.