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72 vulnerabilities found for langflow by langflow-ai
CVE-2026-55450 (GCVE-0-2026-55450)
Vulnerability from nvd – Published: 2026-06-23 16:17 – Updated: 2026-06-23 17:02
VLAI
Title
Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, unauthenticated users can upload any amount of data to the server without any limitations. No need for any prior knowledge, only network access to Langflow. This can lead to space exhaustion on the server. In addition, in the response, the absolute path of the uploaded file is reported to the attacker, which is an information leak that can assist in chaining other primitives. This vulnerability is fixed in 1.9.1.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12831 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.1
|
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CVE-2026-55447 (GCVE-0-2026-55447)
Vulnerability from nvd – Published: 2026-06-23 16:21 – Updated: 2026-06-24 15:47
VLAI
Title
Langflow: BaseFileComponent-based nodes arbitrary file read with RCE exploit
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, by controlling a files that are digested into the RAG, an attacker can direct the node to read any file on the file-system by absolute path. All components based on BaseFileComponent are vulnerable to the vulnerability. This includes Docling (DoclingInlineComponent), Docling Serve, DoclingRemoteComponent), Read File (FileComponent), NVIDIA Retriever Extraction (NvidiaIngestComponent), Video File (VideoFileComponent), and Unstructured API (UnstructuredComponent). This vulnerability is fixed in 1.9.2.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12945 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
|
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CVE-2026-55446 (GCVE-0-2026-55446)
Vulnerability from nvd – Published: 2026-06-23 16:26 – Updated: 2026-06-23 17:56
VLAI
Title
Langflow: Unauthenticated DoS through multipart form boundary file upload
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.0.19, an attacker can send a /api/v1/files/upload/ request without any authentication token/cookies and abuse a very long multipart form boundary to make the langflow app unusable for all users for an indefinite amount of time. This vulnerability is fixed in 1.0.19.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/3923 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.0.19
|
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CVE-2026-55423 (GCVE-0-2026-55423)
Vulnerability from nvd – Published: 2026-06-23 16:27 – Updated: 2026-06-23 17:07
VLAI
Title
Langflow: Logout button does not clear session
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.7.0, the logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in. This vulnerability is fixed in 1.7.0.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/10527 | x_refsource_MISC |
| https://github.com/langflow-ai/langflow/pull/10528 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.7.0
|
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CVE-2026-55255 (GCVE-0-2026-55255)
Vulnerability from nvd – Published: 2026-06-23 16:28 – Updated: 2026-06-24 03:56
VLAI
Title
Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.2.
Severity
9.9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12832 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
|
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CVE-2026-48520 (GCVE-0-2026-48520)
Vulnerability from nvd – Published: 2026-06-23 16:31 – Updated: 2026-06-24 14:19
VLAI
Title
Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.10.0
|
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CVE-2026-48519 (GCVE-0-2026-48519)
Vulnerability from nvd – Published: 2026-06-23 16:25 – Updated: 2026-06-24 03:56
VLAI
Title
Langflow: Unauthenticated RCE in Shareable Playgrounds
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" (or "Public Flows" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
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CVE-2026-42867 (GCVE-0-2026-42867)
Vulnerability from nvd – Published: 2026-06-23 16:29 – Updated: 2026-06-23 17:02
VLAI
Title
Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (POST /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw to create directories and write files anywhere on the server's filesystem. This vulnerability is fixed in 1.9.0.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12337 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
|
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CVE-2026-33760 (GCVE-0-2026-33760)
Vulnerability from nvd – Published: 2026-06-23 16:30 – Updated: 2026-06-24 15:47
VLAI
Title
Langflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated user can read, modify, rename, or permanently delete another user's data by supplying the target's resource ID or flow_id. This is a classic IDOR/BOLA vulnerability. Notably, the same source file (monitor.py) contains one correctly-implemented endpoint that uses an ownership check, demonstrating the correct pattern was known but inconsistently applied. This vulnerability is fixed in 1.9.0.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
|
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CVE-2026-12822 (GCVE-0-2026-12822)
Vulnerability from nvd – Published: 2026-06-21 23:30 – Updated: 2026-06-23 13:39
VLAI
Title
langflow-ai langflow Bundle URL Loader code injection
Summary
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/372612 | vdb-entry |
| https://vuldb.com/vuln/372612/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12822 | third-party-advisory |
| https://vuldb.com/submit/837582 | third-party-advisory |
| https://github.com/dxz0069/softwareoverflow/blob/… | related |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.9.0
Affected: 1.9.1 Affected: 1.9.2 Affected: 1.9.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-42048 (GCVE-0-2026-42048)
Vulnerability from nvd – Published: 2026-05-12 17:35 – Updated: 2026-05-13 14:14
VLAI
Title
Langflow: Path Traversal in Langflow Knowledge Bases API
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (DELETE /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are concatenated directly into file paths without proper sanitization or boundary validation. An authenticated attacker can exploit this flaw to delete arbitrary directories anywhere on the server's filesystem, leading to data loss and potential service disruption. This vulnerability is fixed in 1.9.0.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
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CVE-2026-7700 (GCVE-0-2026-7700)
Vulnerability from nvd – Published: 2026-05-03 14:15 – Updated: 2026-05-05 00:43
VLAI
Title
langflow-ai langflow LambdaFilterComponent lambda_filter.p eval code injection
Summary
A weakness has been identified in langflow-ai langflow up to 1.8.4. This affects the function eval of the file src/lfx/src/lfx/components/llm_operations/lambda_filter.p of the component LambdaFilterComponent. Executing a manipulation can lead to code injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360869 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360869/cti | signaturepermissions-required |
| https://vuldb.com/submit/804305 | third-party-advisory |
| https://www.yuque.com/mengnanbulalei/ognlsk/hte2a… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 Affected: 1.8.4 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-7687 (GCVE-0-2026-7687)
Vulnerability from nvd – Published: 2026-05-03 08:45 – Updated: 2026-05-05 00:40
VLAI
Title
langflow-ai langflow Full Builtins code_parser.py CodeParser.parse_callable_details command injection
Summary
A vulnerability was determined in langflow-ai langflow up to 1.8.4. Affected by this issue is the function CodeParser.parse_callable_details of the file src/lfx/src/lfx/custom/code_parser/code_parser.py of the component Full Builtins Module Handler. Executing a manipulation can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360857 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360857/cti | signaturepermissions-required |
| https://vuldb.com/submit/798731 | third-party-advisory |
| https://www.yuque.com/yuqueyonghuqy8yu4/ghuay4/yl… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 Affected: 1.8.4 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-6600 (GCVE-0-2026-6600)
Vulnerability from nvd – Published: 2026-04-20 03:15 – Updated: 2026-04-20 14:54
VLAI
Title
langflow-ai langflow Frontend React Component Rendering edit-message.tsx cross site scripting
Summary
A flaw has been found in langflow-ai langflow up to 1.8.3. This affects an unknown function of the file src/frontend/src/modals/IOModal/components/chatView/chatMessage/components/edit-message.tsx of the component Frontend React Component Rendering. Executing a manipulation can lead to cross site scripting. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358235 | vdb-entry |
| https://vuldb.com/vuln/358235/cti | signaturepermissions-required |
| https://vuldb.com/submit/791923 | third-party-advisory |
| https://gist.github.com/chenhouser2025/935aa5d455… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-6599 (GCVE-0-2026-6599)
Vulnerability from nvd – Published: 2026-04-20 03:00 – Updated: 2026-04-20 14:24
VLAI
Title
langflow-ai langflow Model Context Protocol Configuration API mcp_projects.py install_mcp_config injection
Summary
A vulnerability was detected in langflow-ai langflow up to 1.8.3. The impacted element is the function get_client_ip/install_mcp_config of the file src/backend/base/langflow/api/v1/mcp_projects.py of the component Model Context Protocol Configuration API. Performing a manipulation of the argument X-Forwarded-For results in injection. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358234 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/358234/cti | signaturepermissions-required |
| https://vuldb.com/submit/791922 | third-party-advisory |
| https://gist.github.com/chenhouser2025/a909c47316… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-6598 (GCVE-0-2026-6598)
Vulnerability from nvd – Published: 2026-04-20 02:45 – Updated: 2026-04-20 16:19
VLAI
Title
langflow-ai langflow Project Creation Endpoint projects.py encrypt_auth_settings cleartext storage in file
Summary
A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358233 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/358233/cti | signaturepermissions-required |
| https://vuldb.com/submit/791921 | third-party-advisory |
| https://gist.github.com/chenhouser2025/77adb3486c… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-6597 (GCVE-0-2026-6597)
Vulnerability from nvd – Published: 2026-04-20 02:30 – Updated: 2026-04-20 11:42
VLAI
Title
langflow-ai langflow Flow Using API core.py has_api_terms credentials storage
Summary
A weakness has been identified in langflow-ai langflow up to 1.8.3. Impacted is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. This manipulation causes unprotected storage of credentials. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/358232 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/358232/cti | signaturepermissions-required |
| https://vuldb.com/submit/791920 | third-party-advisory |
| https://gist.github.com/chenhouser2025/b93261c6e6… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-48520 (GCVE-0-2026-48520)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:31 – Updated: 2026-06-24 14:19
VLAI
Title
Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.10.0
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CVE-2026-33760 (GCVE-0-2026-33760)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:30 – Updated: 2026-06-24 15:47
VLAI
Title
Langflow: IDOR/BOLA in Monitor API — Missing Ownership Enforcement on 7 Endpoints
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated user can read, modify, rename, or permanently delete another user's data by supplying the target's resource ID or flow_id. This is a classic IDOR/BOLA vulnerability. Notably, the same source file (monitor.py) contains one correctly-implemented endpoint that uses an ownership check, demonstrating the correct pattern was known but inconsistently applied. This vulnerability is fixed in 1.9.0.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
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CVE-2026-42867 (GCVE-0-2026-42867)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:29 – Updated: 2026-06-23 17:02
VLAI
Title
Langflow: Path Traversal in Knowledge Bases API via Creation Endpoint
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (POST /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker can exploit this flaw to create directories and write files anywhere on the server's filesystem. This vulnerability is fixed in 1.9.0.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12337 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
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CVE-2026-55255 (GCVE-0-2026-55255)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:28 – Updated: 2026-06-24 03:56
VLAI
Title
Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, an Insecure Direct Object Reference (IDOR) vulnerability in /api/v1/responses endpoint allows an authenticated attacker to execute any flow belonging to another user by specifying the victim's flow ID in the request. This vulnerability is fixed in 1.9.2.
Severity
9.9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12832 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
|
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CVE-2026-55423 (GCVE-0-2026-55423)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:27 – Updated: 2026-06-23 17:07
VLAI
Title
Langflow: Logout button does not clear session
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.7.0, the logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in. This vulnerability is fixed in 1.7.0.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-613 - Insufficient Session Expiration
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/10527 | x_refsource_MISC |
| https://github.com/langflow-ai/langflow/pull/10528 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.7.0
|
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CVE-2026-55446 (GCVE-0-2026-55446)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:26 – Updated: 2026-06-23 17:56
VLAI
Title
Langflow: Unauthenticated DoS through multipart form boundary file upload
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.0.19, an attacker can send a /api/v1/files/upload/ request without any authentication token/cookies and abuse a very long multipart form boundary to make the langflow app unusable for all users for an indefinite amount of time. This vulnerability is fixed in 1.0.19.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/3923 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.0.19
|
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CVE-2026-48519 (GCVE-0-2026-48519)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:25 – Updated: 2026-06-24 03:56
VLAI
Title
Langflow: Unauthenticated RCE in Shareable Playgrounds
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" (or "Public Flows" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
|
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CVE-2026-55447 (GCVE-0-2026-55447)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:21 – Updated: 2026-06-24 15:47
VLAI
Title
Langflow: BaseFileComponent-based nodes arbitrary file read with RCE exploit
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, by controlling a files that are digested into the RAG, an attacker can direct the node to read any file on the file-system by absolute path. All components based on BaseFileComponent are vulnerable to the vulnerability. This includes Docling (DoclingInlineComponent), Docling Serve, DoclingRemoteComponent), Read File (FileComponent), NVIDIA Retriever Extraction (NvidiaIngestComponent), Video File (VideoFileComponent), and Unstructured API (UnstructuredComponent). This vulnerability is fixed in 1.9.2.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12945 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.2
|
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CVE-2026-55450 (GCVE-0-2026-55450)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:17 – Updated: 2026-06-23 17:02
VLAI
Title
Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, unauthenticated users can upload any amount of data to the server without any limitations. No need for any prior knowledge, only network access to Langflow. This can lead to space exhaustion on the server. In addition, in the response, the absolute path of the uploaded file is reported to the attacker, which is an information leak that can assist in chaining other primitives. This vulnerability is fixed in 1.9.1.
Severity
9.3 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/12831 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.1
|
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CVE-2026-12822 (GCVE-0-2026-12822)
Vulnerability from cvelistv5 – Published: 2026-06-21 23:30 – Updated: 2026-06-23 13:39
VLAI
Title
langflow-ai langflow Bundle URL Loader code injection
Summary
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/372612 | vdb-entry |
| https://vuldb.com/vuln/372612/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-12822 | third-party-advisory |
| https://vuldb.com/submit/837582 | third-party-advisory |
| https://github.com/dxz0069/softwareoverflow/blob/… | related |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.9.0
Affected: 1.9.1 Affected: 1.9.2 Affected: 1.9.3 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-42048 (GCVE-0-2026-42048)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:35 – Updated: 2026-05-13 14:14
VLAI
Title
Langflow: Path Traversal in Langflow Knowledge Bases API
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow is vulnerable to Path Traversal in the Knowledge Bases API (DELETE /api/v1/knowledge_bases). This occurs because user-supplied knowledge base names are concatenated directly into file paths without proper sanitization or boundary validation. An authenticated attacker can exploit this flaw to delete arbitrary directories anywhere on the server's filesystem, leading to data loss and potential service disruption. This vulnerability is fixed in 1.9.0.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
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CVE-2026-7700 (GCVE-0-2026-7700)
Vulnerability from cvelistv5 – Published: 2026-05-03 14:15 – Updated: 2026-05-05 00:43
VLAI
Title
langflow-ai langflow LambdaFilterComponent lambda_filter.p eval code injection
Summary
A weakness has been identified in langflow-ai langflow up to 1.8.4. This affects the function eval of the file src/lfx/src/lfx/components/llm_operations/lambda_filter.p of the component LambdaFilterComponent. Executing a manipulation can lead to code injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360869 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360869/cti | signaturepermissions-required |
| https://vuldb.com/submit/804305 | third-party-advisory |
| https://www.yuque.com/mengnanbulalei/ognlsk/hte2a… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 Affected: 1.8.4 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
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CVE-2026-7687 (GCVE-0-2026-7687)
Vulnerability from cvelistv5 – Published: 2026-05-03 08:45 – Updated: 2026-05-05 00:40
VLAI
Title
langflow-ai langflow Full Builtins code_parser.py CodeParser.parse_callable_details command injection
Summary
A vulnerability was determined in langflow-ai langflow up to 1.8.4. Affected by this issue is the function CodeParser.parse_callable_details of the file src/lfx/src/lfx/custom/code_parser/code_parser.py of the component Full Builtins Module Handler. Executing a manipulation can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360857 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360857/cti | signaturepermissions-required |
| https://vuldb.com/submit/798731 | third-party-advisory |
| https://www.yuque.com/yuqueyonghuqy8yu4/ghuay4/yl… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
1.8.0
Affected: 1.8.1 Affected: 1.8.2 Affected: 1.8.3 Affected: 1.8.4 cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* |
Credits
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