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Package details: pkg:pypi/langflow@1.8.3
purl pkg:pypi/langflow@1.8.3
Next non-vulnerable version 1.9.0
Latest non-vulnerable version 1.9.0
Risk
Vulnerabilities affecting this package (4)
Vulnerability Summary Fixed by
VCID-4swq-hbjm-3ucd
Aliases:
CVE-2026-33484
GHSA-7grx-3xcx-2xv5
PYSEC-2026-80
Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.
1.9.0
Affected by 0 other vulnerabilities.
VCID-q4r1-xjfk-7bg9
Aliases:
CVE-2026-33053
GHSA-rf6x-r45m-xv3w
PYSEC-2026-78
Langflow is a tool for building and deploying AI-powered agents and workflows. In versions prior to 1.9.0, the delete_api_key_route() endpoint accepts an api_key_id path parameter and deletes it with only a generic authentication check (get_current_active_user dependency). However, the delete_api_key() CRUD function does NOT verify that the API key belongs to the current user before deletion.
1.9.0
Affected by 0 other vulnerabilities.
VCID-rrva-95s5-kbcf
Aliases:
CVE-2026-33309
GHSA-g2j9-7rj2-gm6c
PYSEC-2026-79
Langflow is a tool for building and deploying AI-powered agents and workflows. Versions 1.2.0 through 1.8.1 have a bypass of the patch for CVE-2025-68478 (External Control of File Name), leading to the root architectural issue within `LocalStorageService` remaining unresolved. Because the underlying storage layer lacks boundary containment checks, the system relies entirely on the HTTP-layer `ValidatedFileName` dependency. This defense-in-depth failure leaves the `POST /api/v2/files/` endpoint vulnerable to Arbitrary File Write. The multipart upload filename bypasses the path-parameter guard, allowing authenticated attackers to write files anywhere on the host system, leading to Remote Code Execution (RCE). Version 1.9.0 contains an updated fix.
1.9.0
Affected by 0 other vulnerabilities.
VCID-v5pc-pdm9-97g8
Aliases:
CVE-2026-33873
GHSA-v8hw-mh8c-jxfc
PYSEC-2026-82
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.9.0, the Agentic Assistant feature in Langflow executes LLM-generated Python code during its validation phase. Although this phase appears intended to validate generated component code, the implementation reaches dynamic execution sinks and instantiates the generated class server-side. In deployments where an attacker can access the Agentic Assistant feature and influence the model output, this can result in arbitrary server-side Python execution. Version 1.9.0 fixes the issue.
1.9.0
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-06-02T04:24:26.998893+00:00 Pypa Importer Affected by VCID-v5pc-pdm9-97g8 https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-82.yaml 38.6.0
2026-06-02T04:24:22.474720+00:00 Pypa Importer Affected by VCID-4swq-hbjm-3ucd https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-80.yaml 38.6.0
2026-06-02T04:24:22.175397+00:00 Pypa Importer Affected by VCID-rrva-95s5-kbcf https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-79.yaml 38.6.0
2026-06-02T04:24:21.883508+00:00 Pypa Importer Affected by VCID-q4r1-xjfk-7bg9 https://github.com/pypa/advisory-database/blob/main/vulns/langflow/PYSEC-2026-78.yaml 38.6.0