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CVE-2026-39414
medium
CVSS 6.5
Vulnerability in minio (CVE-2026-39414)
Summary
vulnerability in minio (CVE-2026-39414). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `2026.04.10` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-39414** has been found in minio.
Risk of unauthorized operations or information disclosure. CVSS score: 6.5/10.
What to do: upgrade minio to **2026.04.10** or later.
If unsure, ask your IT team or search "minio CVE-2026-39414" on the vendor's site.
CVE-2026-39414 (minio) — CWE-770 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Patched: `2026.04.10` — 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 minio.
📍 Affected scope
minio — .
🔥 Severity
Severity: Medium (CVSS 6.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2026.04.10**.
🛡️ 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 'minio' .` 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
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1Identify exposure identify
grep -r 'minio' . | 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 `minio` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade minio to 2026.04.10ステージング環境で 2026.04.10 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。
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7Post-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
Bitnami
minio
[{"type":"SEMVER","events":[{"introduced":"2018.08.18"},{"fixed":"2026.04.10"}]}]
Go
github.com/minio/minio
[{"type":"SEMVER","events":[{"introduced":"0.0.0-20180815103019-7c14cdb60e53"}]}]
References
- advisory https://github.com/minio/minio/security/advisories/GHSA-h749-fxx7-pwpg
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-39414
- package https://github.com/minio/minio
- patch https://github.com/minio/minio/commit/7c14cdb60e53dbfdad2be644dfb180cab19fffa7
- patch https://github.com/minio/minio/pull/8200
- web https://docs.min.io/enterprise/aistor-object-store/upgrade-aistor-server/community-edition
- web https://pkg.go.dev/vuln/GO-2026-5415?q
- web https://github.com/advisories/GHSA-h749-fxx7-pwpg