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CVE-2026-6713
medium
CVSS 5.3
Authorization Flaw in gitlab (CVE-2026-6713)
Summary
vulnerability in gitlab (CVE-2026-6713). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `18.10.7, 18.11.4, 19.0.2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-6713** has been found in gitlab.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: upgrade gitlab to **18.10.7, 18.11.4, 19.0.2** or later.
If unsure, ask your IT team or search "gitlab CVE-2026-6713" on the vendor's site.
CVE-2026-6713 (gitlab) — CWE-863 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `18.10.7, 18.11.4, 19.0.2` — 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
**incorrect authorization** (CWE-863) exists in gitlab.
📍 Affected scope
gitlab — .
🔥 Severity
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **18.10.7, 18.11.4, 19.0.2**.
🛡️ 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 'gitlab' .` 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 'gitlab' . | 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 `gitlab` 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 gitlab to 18.10.7, 18.11.4, 19.0.2ステージング環境で 18.10.7, 18.11.4, 19.0.2 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
gitlab
[{"type":"SEMVER","events":[{"introduced":"18.2.0"},{"fixed":"18.10.7"},{"introduced":"18.11.0"},{"fixed":"18.11.4"},{"introduced":"19.0.0"},{"fixed":"19.0.2"}]}]
References
- web https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released/
- web https://gitlab.com/gitlab-org/gitlab/-/work_items/597490
- web https://hackerone.com/reports/3644605
- web https://nvd.nist.gov/vuln/detail/CVE-2026-6713
- web https://about.gitlab.com/releases/2026/05/27/patch-release-gitlab-19-0-1-released
- web https://github.com/advisories/GHSA-r38r-hvg8-xqhf