GHSA-8c4j-f57c-35cf · 深刻度: high · エコシステム: pip — Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.5.1, the `_read_flow` helper in `src/backend/base/langflow/api/v1/flows.py` branched on the `AUTO_LOGIN` setting to decide whether to filter by `user_id`. When `AUTO_LOGIN` was `False` (i.e., authentication was enabled), neither branch enforced an ownership check — the query returned any flow matching the given UUID regardless of who owned it. This allowed any authenticated user to read any other user's flow, including embedded plaintext API keys; modify the logic of another user's AI agents, and/or delete flows belonging to other users. The vulnerability was introduced by the conditional logic that was meant to accommodate public/example flows (those with `user_id = NULL`) under auto-login mode, but inadvertently left the authenticated path without an ownership filter. The fix in version 1.5.1 removes the `AUTO_LOGIN` conditional entirely and unconditionally scopes the query to the requesting user.
総合評価: CVE-2026-34046 は中リスク(46.4/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.41%、32 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.41% | +0.35% |
| 2 | 2026-06-04 | 0.03% | 0.05% | +0.02% |
| 3 | 2026-04-21 | — | 0.03% | — |
EPSS の全履歴 (全 4 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 8.7 | 4.0 | HIGH |
|
— | — | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
GHSA-8c4j-f57c-35cf · 深刻度: high · エコシステム: pip — Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| langflow | langflow | < 1.5.0 | cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
| langflow | langflow | 1.5.0 | cpe:2.3:a:langflow:langflow:1.5.0:dev0:*:*:*:*:*:* |
| langflow | langflow | 1.5.0 | cpe:2.3:a:langflow:langflow:1.5.0:dev1:*:*:*:*:*:* |
| langflow | langflow-base | < 0.5.1 | cpe:2.3:a:langflow:langflow-base:*:*:*:*:*:python:*:* |
| URL | タグ |
|---|---|
| https://github.com/langflow-ai/langflow/pull/8956 | Issue Tracking Patch |
| https://github.com/langflow-ai/langflow/security/advisories/GHSA-8c4j-f57c-35cf | Patch Vendor Advisory |