GHSA-q4q8-7f2j-9h9f · 深刻度: critical · エコシステム: go — Incus has an abitrary file write through its systemd-creds options
Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. Version 6.23.0 fixes the issue.
総合評価: CVE-2026-33945 は中リスク(52.4/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 0.45%、35 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.45% | +0.43% |
| 2 | 2026-04-21 | 0.06% | 0.02% | -0.04% |
| 3 | 2026-03-27 | — | 0.06% | — |
EPSS の全履歴 (全 3 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
| 9.6 | 3.1 | CRITICAL |
|
3.1 | 5.8 | [email protected] |
GHSA-q4q8-7f2j-9h9f · 深刻度: critical · エコシステム: go — Incus has an abitrary file write through its systemd-creds options
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-33945 unimportant priority: Debian including 2 source packages (incus, lxd), 5 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-33945 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2026-33945 |
suse
|
high | CVE-2026-33945 severity important: SUSE including 5 source package names (incus-6.23-1.1, incus-bash-completion-6.23-1.1, incus-fish-completion-6.23-1.1, incus-tools-6.23-1.1, incus-zsh-completion-6.23-1.1), 5 product×package rows across 1 product lines (openSUSE Tumbleweed): Fixed 5. | https://www.suse.com/security/cve/CVE-2026-33945/ |
ubuntu
|
high | CVE-2026-33945 high priority: Ubuntu including 2 source packages (incus, lxd), 11 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): DNE 4, needs-triage 3, not-affected 3, released 1. | https://ubuntu.com/security/CVE-2026-33945 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linuxcontainers | incus | < 6.23.0 | cpe:2.3:a:linuxcontainers:incus:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/lxc/incus/security/advisories/GHSA-q4q8-7f2j-9h9f | Vendor Advisory |