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CVE-2026-5412

Vulnerability in github.com/juju/juju (CVE-2026-5412)

Summary

vulnerability in github.com/juju/juju (CVE-2026-5412). Successful exploitation can lead to full system takeover. Mitigation: upgrade to `0.0.0-20260408003526-d395054dc2c3` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-5412** has been found in github.com/juju/juju. Successful exploitation can lead to full system takeover. CVSS score: ?/10. What to do: upgrade github.com/juju/juju to **0.0.0-20260408003526-d395054dc2c3** or later. If unsure, ask your IT team or search "github.com/juju/juju CVE-2026-5412" on the vendor's site.
CVE-2026-5412 (github.com/juju/juju) — CWE-285 / Attack vector: remote (network-reachable) / no user interaction Patched: `0.0.0-20260408003526-d395054dc2c3` — apply immediately Workaround: The only mitigation is to restrict ingress to the controller API port 17070 on all controller machines (for vm deployments) or the controller service (for k8s deployments). 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-285) exists in github.com/juju/juju.
📍 Affected scope
github.com/juju/juju — .
🔥 Severity
Severity: ?. Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **0.0.0-20260408003526-d395054dc2c3**.
🛡️ Workaround
Workaround: The only mitigation is to restrict ingress to the controller API port 17070 on all controller machines (for vm deployments) or the controller service (for k8s deployments).
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'github.com/juju/juju' .` 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 'github.com/juju/juju' . | 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 `github.com/juju/juju` を grep し、稼働しているサービス・バージョンを把握する。

  2. 5
    Apply temporary workaround mitigate
    The only mitigation is to restrict ingress to the controller API port 17070 on all controller machines (for vm deployments) or the controller service (for k8s deployments).

    パッチが適用されるまでの応急処置として、The only mitigation is to restrict ingress to the controller API port 17070 on all controller machines (for vm deployments) or the controller service (for k8s deployments). を実施。回避策の副作用 (機能低下) を確認した上で。

  3. 6
    Apply patch patch
    Upgrade github.com/juju/juju to 0.0.0-20260408003526-d395054dc2c3

    ステージング環境で 0.0.0-20260408003526-d395054dc2c3 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。

  4. 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

Go github.com/juju/juju
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20260408003526-d395054dc2c3"}]}]

References

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