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Vendor Solution
Upgrade to LXD versions 4.0.14, 5.0.10, 5.21.8, 6.10 or later.
Tracking
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Mon, 28 Sep 2026 17:30:00 +0000
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| Metrics |
ssvc
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Mon, 28 Sep 2026 15:15:00 +0000
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| First Time appeared |
Canonical
Canonical lxd |
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| Vendors & Products |
Canonical
Canonical lxd |
Mon, 28 Sep 2026 13:30:00 +0000
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| Description | Improper link resolution in the migration receive path in Canonical LXD versions 4.0 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client that can create instances or custom storage volumes in a project, or a malicious migration source server, to write attacker-controlled files to arbitrary paths on the target host as root, leading to full host compromise. The attacker does this with a crafted rsync or btrfs send stream that plants a symlink in the transferred volume, such as rootfs or root.img, and then writes through it. | |
| Title | Arbitrary file write on LXD host via symlink in migration stream | |
| Weaknesses | CWE-59 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2026-09-28T16:32:28.274Z
Reserved: 2026-09-09T10:00:46.383Z
Link: CVE-2026-87799
Updated: 2026-09-28T16:22:29.745Z
Status : Deferred
Published: 2026-09-28T14:17:21.427
Modified: 2026-09-28T17:17:51.787
Link: CVE-2026-87799
No data.
OpenCVE Enrichment
Updated: 2026-09-28T15:30:02Z
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CWE-59
Improper Link Resolution Before File Access ('Link Following')