CVE catalog
CVE-2026-63298
An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying
- 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
- 0.69% · Oct 25, 2026
An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying newline characters within the 'nvidia.driver.capabilities' or 'nvidia.require.*' configuration values, an attacker can manipulate the generated lxc.conf file. This flaw enables the attacker to execute arbitrary code on the host system with the privileges of the LXD daemon.
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 | Not reported | unknown |
| 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://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21788-1.json]
- [https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-63298]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-63298]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-63298]
- [https://security-tracker.debian.org/tracker/CVE-2026-63298]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]