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GHSA-v66j-x4hw-fv9g
Vulnerability in Scriban (GHSA-v66j-x4hw-fv9g)
Summary
vulnerability in Scriban (GHSA-v66j-x4hw-fv9g). Risk of unauthorized operations or information disclosure. Exploitable via `POST /api/render`. Mitigation: upgrade to `7.0.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **GHSA-v66j-x4hw-fv9g** has been found in Scriban.
Attackers can target a specific entry point like `POST /api/render` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade Scriban to **7.0.0** or later.
If unsure, ask your IT team or search "Scriban GHSA-v66j-x4hw-fv9g" on the vendor's site.
GHSA-v66j-x4hw-fv9g (Scriban) — CWE-770 /
Attack surface: POST /api/render / `string.pad_left` / `string.pad_right` / `width`
Patched: `7.0.0` — 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-770) exists in Scriban. Attackers reach the vulnerable code path via `POST /api/render` without authentication.
📍 Affected scope
Scriban — . Attack surface: POST /api/render / `string.pad_left` / `string.pad_right` / `width`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **7.0.0**.
🛡️ 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 `POST /api/render` requests with malformed payloads or SQL meta-characters. Run `grep -r 'Scriban' .` 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 'Scriban' . | 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 `Scriban` 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 'POST /api/render' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `POST /api/render` 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 Scriban to 7.0.0ステージング環境で 7.0.0 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 POST /api/render 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
nuget
Scriban
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0"}]}]
nuget
Scriban.Signed
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0"}]}]