← Back
CVE-2026-45043
Privilege Escalation in privilege-escalation (CVE-2026-45043)
Summary
vulnerability in privilege-escalation (CVE-2026-45043). Risk of unauthorized operations or information disclosure. Exploitable via `PUT /rustfs/admin/v3/import-iam`. Mitigation: upgrade to `1.0.0-beta.2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-45043** has been found in privilege-escalation.
Attackers can target a specific entry point like `PUT /rustfs/admin/v3/import-iam` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade privilege-escalation to **1.0.0-beta.2** or later.
If unsure, ask your IT team or search "privilege-escalation CVE-2026-45043" on the vendor's site.
CVE-2026-45043 (privilege-escalation) — CWE-269 /
Attack surface: PUT /rustfs/admin/v3/import-iam
Patched: `1.0.0-beta.2` — 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
**A vulnerability** (CWE-269) exists in privilege-escalation. Attackers reach the vulnerable code path via `PUT /rustfs/admin/v3/import-iam` without authentication.
📍 Affected scope
privilege-escalation — . Attack surface: PUT /rustfs/admin/v3/import-iam.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.0.0-beta.2**.
🛡️ 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 `PUT /rustfs/admin/v3/import-iam` requests with malformed payloads or SQL meta-characters. Run `grep -r 'privilege-escalation' .` 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
-
1Identify exposure identify
grep -r 'privilege-escalation' . | 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 `privilege-escalation` を grep し、稼働しているサービス・バージョンを把握する。
-
3Hunt for indicators of compromise detect
grep 'PUT /rustfs/admin/v3/import-iam' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `PUT /rustfs/admin/v3/import-iam` 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。
-
6Apply patch patch
Upgrade privilege-escalation to 1.0.0-beta.2ステージング環境で 1.0.0-beta.2 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。
-
7Post-deployment verification verify
Replay attack against PUT /rustfs/admin/v3/import-iam 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。