CVE catalog
CVE-2026-63293
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 whe
- Severity
- Critical · CVSS 9.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.59% · Oct 25, 2026
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.
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 |
| Cpe | lxd | Not reported | 4.0.12 | fixed |
| 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 |
| Cpe | lxd | cpe | Not reported | 4.0.12 | Not reported | NVD-CVE-2026-63293 | 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://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21788-1.json]
- [https://github.com/canonical/lxd/security/advisories/GHSA-j825-cg34-5fr5]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-63293]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-63293]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-63293]
- [https://security-tracker.debian.org/tracker/CVE-2026-63293]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]