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GHSA-2vg6-77g8-24mp

Vulnerability in better-auth (GHSA-2vg6-77g8-24mp)

Summary

vulnerability in better-auth (GHSA-2vg6-77g8-24mp). Risk of unauthorized operations or information disclosure. Exploitable via `DELETE /scim/v2/Users/`. Mitigation: upgrade to `1.6.11` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **GHSA-2vg6-77g8-24mp** has been found in better-auth. Attackers can target a specific entry point like `DELETE /scim/v2/Users/` over the network to misuse the product. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade better-auth to **1.6.11** or later. If unsure, ask your IT team or search "better-auth GHSA-2vg6-77g8-24mp" on the vendor's site.
GHSA-2vg6-77g8-24mp (better-auth) — CWE-459 / Attack surface: DELETE /scim/v2/Users/ / `secondaryStorage` / `session.storeSessionInDatabase` / `false` Patched: `1.6.11` — apply immediately Workaround: set session.storeSessionInDatabase: true 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-459) exists in better-auth. Attackers reach the vulnerable code path via `DELETE /scim/v2/Users/` without authentication.
📍 Affected scope
better-auth — . Attack surface: DELETE /scim/v2/Users/ / `secondaryStorage` / `session.storeSessionInDatabase` / `false`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.6.11**.
🛡️ Workaround
Workaround: set session.storeSessionInDatabase: true
🔍 Detection
Search webserver/proxy logs for unusual `DELETE /scim/v2/Users/` requests with malformed payloads or SQL meta-characters. Run `grep -r 'better-auth' .` 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 'better-auth' . | 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 `better-auth` 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 'DELETE /scim/v2/Users/' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで `DELETE /scim/v2/Users/` 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. 5
    Apply temporary workaround mitigate
    set session.storeSessionInDatabase: true

    パッチが適用されるまでの応急処置として、set session.storeSessionInDatabase: true を実施。回避策の副作用 (機能低下) を確認した上で。

  4. 6
    Apply patch patch
    Upgrade better-auth to 1.6.11

    ステージング環境で 1.6.11 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。

  5. 7
    Post-deployment verification verify
    Replay attack against DELETE /scim/v2/Users/ 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

npm better-auth
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.11"}]}]
npm @better-auth/scim
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.11"}]}]

References

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