CVE-2026-87798 json
LXD client recursive file pull allows directory escape via malicious VM agent
published 2026-09-28 41 d ago modified 2026-09-28 41 d ago also EUVD-2026-88261
- cvss
- 5.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
Improper link resolution in the recursive file pull feature of the LXD CLI client in Canonical LXD versions 4.0.2 up to 6.9 (fixed in 4.0.14, 5.0.10 and 5.21.8) on Linux allows an attacker with root access inside a virtual machine to write attacker-controlled files or directory trees to arbitrary paths on the client host, with the operator's privileges. The attacker does this by using a modified lxd-agent that returns inconsistent SFTP directory listings and Lstat results.
Patch / fix
- Canonical LXD 4.0.14, 5.0.10, 5.21.8, 6.9
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 41 d ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.8 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N |
Affected products
- Canonical LXD
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
Sources
- CVE List CVE-2026-87798
- NVD CVE-2026-87798
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