Categories
CVE-2026-48166 medium CVSS 5.3

Vulnerability in filament/filament (CVE-2026-48166)

Summary

Vulnerability in filament/filament (CVE-2026-48166). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 5.6.5 or later.

Original description

The description as published by the source.

Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.11.5 and 5.6.5, the login page has an observable timing discrepancy that allows unauthenticated attackers to enumerate registered email addresses. The impact is limited to disclosing whether an account exists for a given email. This vulnerability is fixed in 4.11.5 and 5.6.5.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-48166 has been found in filament/filament.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: upgrade filament/filament to 5.6.5 or later.
If unsure, ask your IT team or search "filament/filament CVE-2026-48166" on the vendor's site.

CVE-2026-48166 (filament/filament) — CWE-208 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 5.6.5 — 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-208) exists in filament/filament.

📍 Affected scope

Check the vendor advisory for the affected versions of filament/filament.

🔥 Severity

Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 5.6.5.

🛡️ 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 'filament/filament' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'filament/filament' . | 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 filament/filament を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch
    Upgrade filament/filament to 5.6.5

    ステージング環境で 5.6.5 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を含めること。

  3. 3
    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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

composer filament/filament
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.5"}]}]
Packagist filament/filament
[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"5.6.5"}]}]

References

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