cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running `python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink`, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.
総合評価: CVE-2022-39209 は中リスク(55.4/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 1.57%、72 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 | 1.41% | 1.57% | +0.16% |
| 2 | 2026-06-12 | 1.83% | 1.41% | -0.42% |
| 3 | 2026-04-12 | — | 1.83% | — |
EPSS の全履歴 (全 49 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2022-39209 unimportant priority: Debian including 5 source packages (cmark-gfm, ghostwriter, python-cmarkgfm, r-cran-commonmark, ruby-commonmarker), 25 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 18, open 7. | https://security-tracker.debian.org/tracker/CVE-2022-39209 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-39209 |
ubuntu
|
medium | CVE-2022-39209 medium priority: Ubuntu including 1 source packages (cmark-gfm), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 5, not-affected 4, released 3, DNE 1. | https://ubuntu.com/security/CVE-2022-39209 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| github | cmark-gfm | < 0.29.0.gfm.6 | cpe:2.3:a:github:cmark-gfm:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| fedoraproject | fedora | 37 | cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* |