← Back
CVE-2026-54917 critical CVSS 10.0

Path Traversal in github.com/seaweedfs/seaweedfs (CVE-2026-54917)

Summary

path traversal in github.com/seaweedfs/seaweedfs (CVE-2026-54917). Confidential information can be exposed externally. Exploitable via `GET /bucket-A/../evil-bucket/key`. Mitigation: upgrade to `0.0.0-20260526080459-dd1b4287899e` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-54917** has been found in github.com/seaweedfs/seaweedfs. Attackers can target a specific entry point like `GET /bucket-A/../evil-bucket/key` over the network to misuse the product. Confidential information can be exposed externally. CVSS score: 10.0/10. What to do: upgrade github.com/seaweedfs/seaweedfs to **0.0.0-20260526080459-dd1b4287899e** or later. If unsure, ask your IT team or search "github.com/seaweedfs/seaweedfs CVE-2026-54917" on the vendor's site.
CVE-2026-54917 (github.com/seaweedfs/seaweedfs) — CWE-22 / CVSS v3 10.0 Attack vector: remote (network-reachable) / unauthenticated / no user interaction Attack surface: GET /bucket-A/../evil-bucket/key / GET /bucket-A/../evil-bucket/secret.txt / GET /bucket-A/ / `util.JoinPath` Patched: `0.0.0-20260526080459-dd1b4287899e` — apply immediately Workaround: For deployments that cannot upgrade immediately, place a reverse proxy in front of the gateway that normalizes the request path and rejects requests whose path contains `..`, `%2e%2e`, or backslash sequences. Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs. Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**Path traversal** (CWE-22) exists in github.com/seaweedfs/seaweedfs. Attackers reach the vulnerable code path via `GET /bucket-A/../evil-bucket/key` without authentication.
📍 Affected scope
github.com/seaweedfs/seaweedfs — . Attack surface: GET /bucket-A/../evil-bucket/key / GET /bucket-A/../evil-bucket/secret.txt / GET /bucket-A/ / `util.JoinPath`.
🔥 Severity
Severity: Critical (CVSS 10.0/10). Confidential information can be exposed externally
🔧 How to fix
Update to **0.0.0-20260526080459-dd1b4287899e**.
🛡️ Workaround
Workaround: For deployments that cannot upgrade immediately, place a reverse proxy in front of the gateway that normalizes the request path and rejects requests whose path contains `..`, `%2e%2e`, or backslash sequences.
🔍 Detection
Search webserver/proxy logs for unusual `GET /bucket-A/../evil-bucket/key` requests with malformed payloads or SQL meta-characters. Run `grep -r 'github.com/seaweedfs/seaweedfs' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'github.com/seaweedfs/seaweedfs' . | 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 `github.com/seaweedfs/seaweedfs` を grep し、稼働しているサービス・バージョンを把握する。

  2. 3
    Hunt for indicators of compromise detect
    grep 'GET /bucket-A/../evil-bucket/key' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで `GET /bucket-A/../evil-bucket/key` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。

  3. 5
    Apply temporary workaround mitigate
    For deployments that cannot upgrade immediately, place a reverse proxy in front of the gateway that normalizes the request path and rejects requests whose path contains `..`, `%2e%2e`, or backslash sequences.

    パッチが適用されるまでの応急処置として、For deployments that cannot upgrade immediately, place a reverse proxy in front of the gateway that normalizes the request path and rejects requests whose path contains `..`, `%2e%2e`, or backslash sequences. を実施。回避策の副作用 (機能低下) を確認した上で。

  4. 6
    Apply patch patch
    Upgrade github.com/seaweedfs/seaweedfs to 0.0.0-20260526080459-dd1b4287899e

    ステージング環境で 0.0.0-20260526080459-dd1b4287899e 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。

  5. 7
    Post-deployment verification verify
    Replay attack against GET /bucket-A/../evil-bucket/key on staging to confirm patch closes the vector

    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。

Affected packages

go github.com/seaweedfs/seaweedfs
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.0-20260526080459-dd1b4287899e"}]}]

References

🍪 About cookies

We use cookies to keep you logged in, remember your language, and improve the service.

Details →