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Vulnerabilities CVE-2026-63293

CVE-2026-63293

Critical
Open
TLP:CLEAR

Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root

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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.

Details

CVSS Score
9.9
EPSS Score
0.38%

31.2th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Confidence
90%
Published
Aug 12, 2026
Last Modified
Aug 13, 2026
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