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CVE-2026-53639
Vulnerability in sylius/sylius (CVE-2026-53639)
Summary
vulnerability in sylius/sylius (CVE-2026-53639). Risk of unauthorized operations or information disclosure. Exploitable via `GET /api/v2/shop/payment-requests/{hash}`. Mitigation: upgrade to `2.2.6` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-53639** has been found in sylius/sylius.
Attackers can target a specific entry point like `GET /api/v2/shop/payment-requests/{hash}` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade sylius/sylius to **2.2.6** or later.
If unsure, ask your IT team or search "sylius/sylius CVE-2026-53639" on the vendor's site.
CVE-2026-53639 (sylius/sylius) — CWE-639 /
Attack surface: GET /api/v2/shop/payment-requests/{hash} / PUT /api/v2/shop/payment-requests/{hash} / POST /api/v2/shop/orders/{tokenValue}/payment-requests / `payment`
Patched: `2.2.6` — 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-639) exists in sylius/sylius. Attackers reach the vulnerable code path via `GET /api/v2/shop/payment-requests/{hash}` without authentication.
📍 Affected scope
sylius/sylius — . Attack surface: GET /api/v2/shop/payment-requests/{hash} / PUT /api/v2/shop/payment-requests/{hash} / POST /api/v2/shop/orders/{tokenValue}/payment-requests / `payment`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.2.6**.
🛡️ 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 /api/v2/shop/payment-requests/{hash}` requests with malformed payloads or SQL meta-characters. Run `grep -r 'sylius/sylius' .` 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
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1Identify exposure identify
grep -r 'sylius/sylius' . | 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 `sylius/sylius` 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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3Hunt for indicators of compromise detect
grep 'GET /api/v2/shop/payment-requests/{hash}' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `GET /api/v2/shop/payment-requests/{hash}` 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。
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6Apply patch patch
Upgrade sylius/sylius to 2.2.6ステージング環境で 2.2.6 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
Replay attack against GET /api/v2/shop/payment-requests/{hash} 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
composer
sylius/sylius
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.6"}]}]
Packagist
sylius/sylius
[{"type":"ECOSYSTEM","events":[{"introduced":"2.2.0"},{"fixed":"2.2.6"}]}]