Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will launch `flatpak build --nofilesystem=host appstream-utils mirror-screenshots` after finalization, which can lead to issues even with the `--nofilesystem=host` protection. In normal use, the only issue is that these empty directories can be created wherever the user has write permissions. However, a malicious application could replace the `appstream-util` binary and potentially do something more hostile. This has been resolved in Flatpak 1.12.3 and 1.10.6 by changing the behaviour of `--nofilesystem=home` and `--nofilesystem=host`.
総合評価: CVE-2022-21682 は中リスク（58.2/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.71%、74 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.38% 上昇。悪用への関心が高まっている可能性があります。 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 | 0.34% | 1.71% | +1.38% |
| 2 | 2026-01-20 | 0.36% | 0.34% | -0.02% |
| 3 | 2025-12-28 | — | 0.36% | — |
EPSS の全履歴 （全 18 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 |
|---|---|---|---|---|---|---|
| 7.7 | 3.1 | HIGH |
|
3.1 | 4.0 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-21682: 2 source package rows (flatpak, flatpak-builder); 23 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 23, open 0. | https://security.alpinelinux.org/vuln/CVE-2022-21682 |
debian
|
not yet assigned | CVE-2022-21682 not yet assigned priority: Debian including 1 source packages (flatpak), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-21682 |
gentoo
|
high | CVE-2022-21682: 1 GLSA(s) (202312-12), 1 atom(s) (sys-apps/flatpak); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-21682 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-21682 |
suse
|
medium | CVE-2022-21682 severity moderate: SUSE including 58 source package names (flatpak, flatpak-1.10.7-4.12.1, …), 169 product×package rows across 35 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (35 product lines)): Fixed 122, Will Not Fix 40, Known Not Affected 7. | https://www.suse.com/security/cve/CVE-2022-21682/ |
ubuntu
|
low | CVE-2022-21682 low priority: Ubuntu including 1 source packages (flatpak), 15 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, ignored 5, needs-triage 3, released 1. | https://ubuntu.com/security/CVE-2022-21682 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| flatpak | flatpak | < 1.10.7 | cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* |
| flatpak | flatpak | >= 1.11.1, < 1.12.4 | cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* |
| flatpak | flatpak-builder | < 1.2.2 | cpe:2.3:a:flatpak:flatpak-builder:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |