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CVE-2026-6599
Vulnerability in langflow (CVE-2026-6599)
Summary
vulnerability in langflow (CVE-2026-6599). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-6599** has been found in langflow.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "langflow CVE-2026-6599" on the vendor's site.
CVE-2026-6599 (langflow) — CWE-74 /
Attack vector: remote (network-reachable) / no user interaction
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-74) exists in langflow.
📍 Affected scope
langflow — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'langflow' .` 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
-
1Identify exposure identify
grep -r 'langflow' . | 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 `langflow` を grep し、稼働しているサービス・バージョンを把握する。
-
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
PyPI
langflow
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.8.3"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-6599
- advisory https://github.com/advisories/GHSA-v66p-f7x3-4794
- package https://github.com/langflow-ai/langflow
- package https://pypi.org/project/langflow
- web https://gist.github.com/chenhouser2025/a909c47316b7a0948ee68c109ab747a3
- web https://vuldb.com/submit/791922
- web https://vuldb.com/vuln/358234
- web https://vuldb.com/vuln/358234/cti