CVE catalog
CVE-2026-87798
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 a
- Severity
- Medium · CVSS 5.8
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.19% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lxd | trixie | 5.0.2+git20231211.1364ae4-9+deb13u7 | vulnerable |
| Debian | lxd | trixie-security | 5.0.2+git20231211.1364ae4-9+deb13u7 | vulnerable |
| Debian | lxd | bookworm | 5.0.2-5+deb12u6 | vulnerable |
| Debian | lxd | bookworm-security | 5.0.2-5+deb12u6 | vulnerable |
| Ubuntu | lxd | pro | 2.18-0ubuntu6 | vulnerable |
| Ubuntu | lxd | pro | 2.19-0ubuntu1 | vulnerable |
| Ubuntu | lxd | pro | 2.20-0ubuntu3 | vulnerable |
| Ubuntu | lxd | pro | 2.20-0ubuntu4 | vulnerable |
| Ubuntu | lxd | pro | 2.21-0ubuntu1 | vulnerable |
| Ubuntu | lxd | pro | 2.21-0ubuntu2 | vulnerable |
| Ubuntu | lxd | pro | 2.21-0ubuntu3 | vulnerable |
| Ubuntu | lxd | pro | 2.21-0ubuntu4 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0~beta2-0ubuntu3 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0~beta3-0ubuntu3 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0~beta5-0ubuntu2 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0~beta7-0ubuntu1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0-0ubuntu1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0-0ubuntu2 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0-0ubuntu3 | vulnerable |
| Ubuntu | lxd | pro | 3.0.0-0ubuntu4 | vulnerable |
| Ubuntu | lxd | pro | 3.0.1-0ubuntu1~18.04.1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.2-0ubuntu1~18.04.1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.3-0ubuntu1~18.04.1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.3-0ubuntu1~18.04.2 | vulnerable |
| Ubuntu | lxd | pro | 3.0.3-0ubuntu1~18.04.2+esm1 | vulnerable |
| Ubuntu | lxd | pro | 3.0.3-0ubuntu1~18.04.2+esm2 | vulnerable |
| Ubuntu | lxd | pro | 3.0.3-0ubuntu1~18.04.2+esm3 | vulnerable |
| Ubuntu | lxd | 20.04 | 1:0.7 | vulnerable |
| Ubuntu | lxd | 20.04 | 1:0.8 | vulnerable |
| Ubuntu | lxd | 20.04 | 1:0.9 | vulnerable |
| Ubuntu | lxd | 20.04 | 1:0.10 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lxd | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | lxd | source | bookworm | (unfixed) | end-of-life | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [lxd]Affected
Details (4)
5.0.2-5+deb12u6· amd64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· amd64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- [lxd-agent]Affected
Source package: [lxd]
Details (4)
5.0.2-5+deb12u6· amd64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· amd64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- [lxd-client]Affected
Source package: [lxd]
Details (4)
5.0.2-5+deb12u6· amd64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· amd64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- [lxd-migrate]Affected
Source package: [lxd]
Details (4)
5.0.2-5+deb12u6· amd64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· amd64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
- [lxd-tools]Affected
Source package: [lxd]
Details (4)
5.0.2-5+deb12u6· amd64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookwormAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· amd64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
5.0.2-5+deb12u6· arm64 · bookworm-securityAffected
nvd · lxd · debian · bookworm; nvd · lxd · debian · 12
[Debian 13 (Trixie)]
- [golang-github-canonical-lxd-dev]Affected
Source package: [lxd]
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· all · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· all · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· all · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· all · trixie-securityAffected
nvd · lxd · debian · 13
- [lxd]Affected
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixie-securityAffected
nvd · lxd · debian · 13
- [lxd-agent]Affected
Source package: [lxd]
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixie-securityAffected
nvd · lxd · debian · 13
- [lxd-client]Affected
Source package: [lxd]
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixie-securityAffected
nvd · lxd · debian · 13
- [lxd-migrate]Affected
Source package: [lxd]
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixie-securityAffected
nvd · lxd · debian · 13
- [lxd-tools]Affected
Source package: [lxd]
Details (4)
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixieAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· amd64 · trixie-securityAffected
nvd · lxd · debian · 13
5.0.2+git20231211.1364ae4-9+deb13u7· arm64 · trixie-securityAffected
nvd · lxd · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-87798]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-87798]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-87798]
- [https://security-tracker.debian.org/tracker/CVE-2026-87798]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]