EUVD-2026-16850

Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check...

Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check

Vulnerability IDOR in GET/PATCH/DELETE /api/v1/flow/flowid The readflow helper in src/backend/base/langflow/api/v1/flows.py branched on the AUTOLOGIN setting to decide whether to filter by userid. When AUTOLOGIN was False i.e., authentication was enabled, neither branch enforced an ownership chec...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-5027 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-5027 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15842030...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-5022 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-5022 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15840036...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the downloadimage endpoint. An attacker can access and download image files belonging to any flow by knowing or guessing the flow ID and file name. Remediation There is no fixed version for langflow-base...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-5026 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-5026 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15814086...

langflow-nightly (=1.8.0.dev24) potentially affected by CVE-2026-5025 via langflow-base (=0.7.2)

langflow-base PYPI version =0.7.2 is affected by a known vulnerability. The following packages have a transitive dependency on langflow-base and may be impacted: - langflow-nightly =1.8.0.dev24 Source cves: CVE-2026-5025 Source advisory: SNYK:PYTHON-LANGFLOWBASE-15813866...

CVE-2026-5027

Langflow

CVE-2026-5027 Langflow - Path Traversal Arbitrary File Write via upload_user_file

The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences '../'...

CVE-2026-5027 Langflow - Path Traversal Arbitrary File Write via upload_user_file

The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences '../'...

CVE-2026-5026 Langflow - Stored XSS via Malicious SVG Upload

The '/api/v1/files/images/flowid/filename' endpoint serves SVG files with the 'image/svg+xml' content type without sanitizing their content. Since SVG files can contain embedded JavaScript, an attacker can upload a malicious SVG that executes arbitrary JavaScript when viewed by other users, leadi...

CVE-2026-5026

LangFlow exposes stored XSS via SVG uploads: the endpoint /api/v1/files/images/{flow_id}/{file_name} serves SVGs as image/svg+xml without sanitization, allowing embedded JavaScript to run when viewed by users and potentially exfiltrate cookies/JWTs. The vulnerability stems from unsanitized SVG co...

CVE-2026-5025 Langflow - Application Logs Exposed to All Authenticated Users

The '/logs' and '/logs-stream' endpoints in the log router allow any authenticated user to read the full application log buffer. These endpoints only require basic authentication 'getcurrentactiveuser' without any privilege checks e.g., 'issuperuser'...

CVE-2026-5022 Langflow - Missing Authorization on download_image Endpoint

The '/api/v1/files/images/flowid/filename' endpoint does not enforce any authentication or authorization checks, allowing any unauthenticated user to download images belonging to any flow by knowing or guessing the flow ID and file name...

CVE-2026-5022

CVE-2026-5022 (Langflow) : The endpoint "/api/v1/files/images/{flow_id}/{file_name}" lacks authentication/authorization, enabling any unauthenticated user to download images from any flow by guessing the flow_id and file_name. This is documented in both the CVE list and the CVE entry as a missing...

CVE-2026-5022 Langflow - Missing Authorization on download_image Endpoint

The '/api/v1/files/images/flowid/filename' endpoint does not enforce any authentication or authorization checks, allowing any unauthenticated user to download images belonging to any flow by knowing or guessing the flow ID and file name...

Exploit for Eval Injection in Langflow

CVE-2026-33017: Unauthenticated RCE in Langflow Refer...

Exploit for Eval Injection in Langflow

CVE-2026-33...

Langflow 代码注入漏洞

Langflow is an open-source visualization framework developed by Langflow for building multi-agent and RAG applications. Prior to Langflow 1.9.0, there was a code injection vulnerability. This vulnerability stemmed from the Agentic Assistant feature, which executed Python code generated by the LLM...

Langflow 安全漏洞

Langflow is an open-source visualization framework developed by Langflow for building multi-agent and RAG applications. Langflow has a security vulnerability where the endpoint/api/v1/files/images/flowid/filename does not clean the content when providing SVG files. This may lead to storage-side...