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CVE-2026-27876 critical CVSS 9.1

Code Injection in grafana (CVE-2026-27876)

Summary

Code injection in grafana (CVE-2026-27876). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2 or later.

Original description

The description as published by the source.

A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended to update to avoid future attack vectors going this path.

Only instances with the sqlExpressions feature toggle enabled are vulnerable.

Only instances in the following version ranges are affected:

  • 11.6.0 (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected.
  • 12.0.0 (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-life.
  • 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix.
  • 12.3.0 (inclusive) to 12.3.6 (exclusive): 12.3.6 has the fix.
  • 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0 and above also have the fix: no v13 release is affected.

Source: NIST National Vulnerability Database NVD

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-2026-27876 has been found in grafana.
Successful exploitation can lead to full system takeover. CVSS score: 9.1/10.
What to do: upgrade grafana to 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2 or later.
If unsure, ask your IT team or search "grafana CVE-2026-27876" on the vendor's site.

CVE-2026-27876 (grafana) — CWE-94 / CVSS v3 9.1
Attack vector: remote (network-reachable) / no user interaction
Patched: 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2 — 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

Arbitrary code execution (CWE-94) exists in grafana.

📍 Affected scope

Check the vendor advisory for the affected versions of grafana.

🔥 Severity

Severity: Critical (CVSS 9.1/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2.

🛡️ 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 'grafana' . 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 'grafana' . | 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 grafana 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 grafana to 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2

    ステージング環境で 11.6.14, 12.1.10, 12.2.8, 12.3.6, 12.4.2 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

Bitnami grafana
[{"type":"SEMVER","events":[{"introduced":"11.6.0"},{"fixed":"11.6.14"},{"introduced":"12.0.0"},{"fixed":"12.1.10"},{"introduced":"12.2.0"},{"fixed":"12.2.8"},{"introduced":"12.3.0"},{"fixed":"12.3.6"},{"introduced":"12.4.0"},{"fixed":"12.4.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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