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CVE-2026-59733 high CVSS 8.8

Path Traversal in github.com/rclone/rclone (CVE-2026-59733)

Summary

path traversal in github.com/rclone/rclone (CVE-2026-59733). Successful exploitation can lead to full system takeover. Exploitable via `GET /test/../victim/config`. Mitigation: upgrade to `1.74.4` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-59733** has been found in github.com/rclone/rclone. Attackers can target a specific entry point like `GET /test/../victim/config` over the network to misuse the product. Successful exploitation can lead to full system takeover. CVSS score: 8.8/10. What to do: upgrade github.com/rclone/rclone to **1.74.4** or later. If unsure, ask your IT team or search "github.com/rclone/rclone CVE-2026-59733" on the vendor's site.
CVE-2026-59733 (github.com/rclone/rclone) — CWE-22 / CVSS v3 8.8 Attack vector: remote (network-reachable) / no user interaction Attack surface: GET /test/../victim/config / GET /mallory/config / GET /alice/config / GET /mallory/../alice/config Patched: `1.74.4` — apply immediately 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/rclone/rclone. Attackers reach the vulnerable code path via `GET /test/../victim/config` without authentication.
📍 Affected scope
github.com/rclone/rclone — . Attack surface: GET /test/../victim/config / GET /mallory/config / GET /alice/config / GET /mallory/../alice/config.
🔥 Severity
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **1.74.4**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual `GET /test/../victim/config` requests with malformed payloads or SQL meta-characters. Run `grep -r 'github.com/rclone/rclone' .` 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/rclone/rclone' . | 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/rclone/rclone` 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 /test/../victim/config' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで `GET /test/../victim/config` 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. 6
    Apply patch patch 
    Upgrade github.com/rclone/rclone to 1.74.4

    ステージング環境で 1.74.4 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。

  4. 7
    Post-deployment verification verify 
    Replay attack against GET /test/../victim/config 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/rclone/rclone
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.74.4"}]}]

References

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