CVE catalog
CVE-2026-85185
Path traversal in the btrfs storage driver in Canonical LXD versions 4.0.2 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create instan
- Severity
- Critical · CVSS 9.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.37% · Oct 25, 2026
Path traversal in the btrfs storage driver in Canonical LXD versions 4.0.2 and later (fixed in 4.0.14, 5.0.10, 5.21.8 and 6.10) on Linux allows an authenticated client with permission to create instances in a project to delete arbitrary files on the host as root. On hosts whose root filesystem is btrfs, the client can also place attacker-controlled content at arbitrary host paths, leading to full host compromise. The client does this with a crafted subvolume path containing ../ sequences, sent in either of two ways: in the optimized_header.yaml of an optimized btrfs backup, or in the btrfs migration header sent by a malicious migration source.
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 |
| Opensuse | incus | tumbleweed | 7.5.1-1.1 | fixed |
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 |
| Opensuse | incus | rpm | tumbleweed | 7.5.1-1.1 | Not reported | OPENSUSE-SU-2026:11983-1 | 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
- [golang-github-lxc-incus-dev]Fixed
Source package: [incus]
Details (7)
6.0.4-2+deb13u8· all · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u8· all · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· all · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· all · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u11· all · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· all · trixie-security · Historical versionFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· all · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
- [incus]Fixed
Details (7)
6.0.4-2+deb13u8· amd64 · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u8· arm64 · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u11· amd64 · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· amd64 · trixie-security · Historical versionFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· arm64 · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
- [incus-agent]Fixed
Source package: [incus]
Details (7)
6.0.4-2+deb13u8· amd64 · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u8· arm64 · trixieFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
7.0.1-2~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u11· amd64 · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· amd64 · trixie-security · Historical versionFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
6.0.4-2+deb13u9· arm64 · trixie-securityFixed · Fixed:
6.0.4-2+deb13u1nvd · incus · debian · 13
[openSUSE Tumbleweed]
- [incus]Affected
Source package: [incus]
Details (1)
6.23-3.1· x86_64 · tumbleweedAffected · Fixed:
7.5.1-1.1nvd · incus · opensuse · tumbleweed
- [incus-cli]Unknown
Source package: [incus]
Details (1)
6.23-3.1· x86_64 · tumbleweedUnknown · Fixed:
7.5.1-1.1Version impact unknown
nvd · incus · opensuse · tumbleweed
- [incus-cli-bash-completion]Unknown
Source package: [incus]
Details (1)
6.23-3.1· noarch · tumbleweedUnknown · Fixed:
7.5.1-1.1Version impact unknown
nvd · incus · opensuse · tumbleweed
- [incus-cli-fish-completion]Unknown
Source package: [incus]
Details (1)
6.23-3.1· noarch · tumbleweedUnknown · Fixed:
7.5.1-1.1Version impact unknown
nvd · incus · opensuse · tumbleweed
- [incus-cli-zsh-completion]Unknown
Source package: [incus]
Details (1)
6.23-3.1· noarch · tumbleweedUnknown · Fixed:
7.5.1-1.1Version impact unknown
nvd · incus · opensuse · tumbleweed
- [incus-tools]Unknown
Source package: [incus]
Details (1)
6.23-3.1· x86_64 · tumbleweedUnknown · Fixed:
7.5.1-1.1Version impact unknown
nvd · incus · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11983-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-85185]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-85185]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11983-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-85185]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]