Vulnérabilité dans org.http4s:http4s-blaze-server_2.13 (CVE-2026-73494)
Résumé
vulnérabilité dans org.http4s:http4s-blaze-server_2.13 (CVE-2026-73494). Risque d'opérations non autorisées ou de divulgation. Exploitable via ``BlazeServerBuilder``. Atténuation : mise à jour vers `0.23.18` ou plus.
Résumé IA snake-internal / snake-material-v2
Actions de réponse (7 étapes)
Étapes concrètes et exemples de commandes que les équipes SOC/SRE doivent exécuter dans l'ordre
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1Identify exposure identify
grep -r 'org.http4s:http4s-blaze-server_2.13' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `org.http4s:http4s-blaze-server_2.13` を grep し、稼働しているサービス・バージョンを把握する。
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5Apply temporary workaround mitigate
Deploy behind an RFC-strict reverse proxy (nginx, HAProxy, Envoy, ALB) that rejects or re-serializes malformed requests at the edge; this neutralizes most of these for deployments that cannot upgrade immediately.パッチが適用されるまでの応急処置として、Deploy behind an RFC-strict reverse proxy (nginx, HAProxy, Envoy, ALB) that rejects or re-serializes malformed requests at the edge; this neutralizes most of these for deployments that cannot upgrade immediately. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade org.http4s:http4s-blaze-server_2.13 to 0.23.18ステージング環境で 0.23.18 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Paquets affectés
Références
- web https://github.com/http4s/blaze/security/advisories/GHSA-mhvj-jhpq-885v
- web https://github.com/http4s/blaze/commit/3f7c022e306631b006dcb43a1d7f65c0d1966f17
- web https://github.com/http4s/blaze/commit/4eec2007806aa9acfefb00ebb636ddc39a147a96
- web https://github.com/http4s/blaze/commit/927b67753a78c13c4445dac9307f511f5c4878c3
- web https://github.com/http4s/blaze/commit/a54bc9cd31758335c7f24e29763622fd03fcf734
- web https://github.com/http4s/blaze/commit/c47d9675f87603f11b32a11d503626bdf9be5c7a
- web https://github.com/http4s/blaze/commit/e871ebb1d27f50c98fd56988526ce42d0fee74d6
- web https://github.com/http4s/blaze/releases/tag/v0.23.18
- web https://github.com/http4s/blaze/releases/tag/v1.0.0-M42
- web https://github.com/advisories/GHSA-mhvj-jhpq-885v