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fix: bump Bun to 1.4.4 for CVE-2026-111497 (Brotli RCE) - #90
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
oven/bun 1.4.x is built on Debian 13, which no longer ships adduser/addgroup. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
masudahiroto
approved these changes
Oct 23, 2026
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概要
Node.js 10月セキュリティリリースの Brotli RCE（CVE-2026-111497）は google/brotli 側のバグで、Bun も影響を受ける（oven-sh/bun#46352）。修正は Bun v1.4.4（2026-10-22, "update brotli"）。Node を 24.22.1 に上げても、Bun で動くサービスには効かない。
use-ai-server-appの本番イメージはoven/bun:1.3.2-slimに固定されており、修正が入っていない。変更点
apps/use-ai-server-app/Dockerfile: base / production の両ステージをoven/bun:1.3.2-slim→oven/bun:1.4.4-slimにpackage.jsonのpackageManager:bun@1.3.13→bun@1.4.4（CI はbun-version-file: package.jsonなので、CI とランタイムが同じバージョンに揃う）apps/use-ai-server-app/Dockerfile:oven/bun:1.4.xのベースが Debian 12 (bookworm) から 13 (trixie) に変わり、addgroup/adduserが無くなったためgroupadd/useraddに置き換え。旧イメージと同じユーザー（uid 1001、gid nogroup、home/nonexistent、shell nologin）になることを確認済み確認
oven/bun:1.4.4-slim上でbun install --frozen-lockfileが通ることを確認済み（bun.lock の変更なし）UseAI server readyが出て、/socket.io/?EIO=4&transport=pollingのハンドシェイクが返ることを確認済み（Bun 1.4.4、uid 1001）既知の問題（今回の変更とは無関係）
Dockerfile の
HEALTHCHECKはsocket.io-clientを import するが、本番イメージに入っていないため常に失敗する。main（Bun 1.3.2）でも同じく unhealthy になる。k8s は Docker の HEALTHCHECK を使わないため、本 PR では触れていない。🤖 Generated with Claude Code