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GHSA-5rpf-x9jg-8j5p

Vulnerability in scriban (GHSA-5rpf-x9jg-8j5p)

Summary

vulnerability in scriban (GHSA-5rpf-x9jg-8j5p). Risk of unauthorized operations or information disclosure. Exploitable via ``TemplateContext.LimitToString``. Mitigation: upgrade to `6.6.0` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **GHSA-5rpf-x9jg-8j5p** has been found in scriban. Attackers can target a specific entry point like ``TemplateContext.LimitToString`` over the network to misuse the product. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade scriban to **6.6.0** or later. If unsure, ask your IT team or search "scriban GHSA-5rpf-x9jg-8j5p" on the vendor's site.
GHSA-5rpf-x9jg-8j5p (scriban) — CWE-770 / Attack vector: remote (network-reachable) / unauthenticated / no user interaction Attack surface: `TemplateContext.LimitToString` / `LoopLimit` / `LimitToString` Patched: `6.6.0` — 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 ``TemplateContext.LimitToString`` without authentication.
📍 Affected scope
scriban — . Attack surface: `TemplateContext.LimitToString` / `LoopLimit` / `LimitToString`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **6.6.0**.
🛡️ 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 request patterns matching this CVE's known IOCs. 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

  1. 1
    Identify 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。

  2. 6
    Apply patch patch
    Upgrade scriban to 6.6.0

    ステージング環境で 6.6.0 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。

  3. 7
    Post-deployment verification verify
    Confirm patched version is live in production

    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":"6.6.0"}]}]
nuget Scriban.Signed
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.0"}]}]

References

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