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82 vulnerabilities by langflow
CVE-2026-7787 (GCVE-0-2026-7787)
Vulnerability from nvd – Published: 2026-06-11 14:41 – Updated: 2026-06-11 16:08
VLAI
Title
Unauthenticated Session History Access via Public Flow Execution
Summary
IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7275453 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.9.1
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.9.1:*:*:*:*:*:*:* |
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CVE-2026-3341 (GCVE-0-2026-3341)
Vulnerability from nvd – Published: 2026-06-11 14:47 – Updated: 2026-06-11 15:46
VLAI
Title
IBM Langflow Desktop 1.0.0 - 1.9.2 DNS Rebinding Bypasses SSRF Protection Allowing Access to Internal Services
Summary
IBM Langflow Desktop 1.0.0 through 1.9.2 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7275444 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.0.0 , ≤ 1.9.2
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.9.2:*:*:*:*:*:*:* |
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CVE-2026-7528 (GCVE-0-2026-7528)
Vulnerability from nvd – Published: 2026-05-27 13:16 – Updated: 2026-05-27 15:30
VLAI
Title
Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS
Summary
IBM Langflow OSS 1.0.0 through 1.9.0 could allow a denial of service due to uncontrolled resource consumption.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7273427 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.9.0
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.9.0:*:*:*:*:*:*:* |
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CVE-2026-7524 (GCVE-0-2026-7524)
Vulnerability from nvd – Published: 2026-05-27 13:14 – Updated: 2026-05-28 13:26
VLAI
Title
Path Traversal Vulnerability in File Processing Components Allows Unauthorized File System Access and Potential Remote Code Execution
Summary
IBM Langflow OSS 1.0.0 through 1.9.1 could allow remote code execution due to improper validation of symbolic links during archive extraction.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
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://www.ibm.com/support/pages/node/7273426 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.9.1
(semver)
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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-2026-6543 (GCVE-0-2026-6543)
Vulnerability from nvd – Published: 2026-04-30 21:11 – Updated: 2026-05-02 03:55
VLAI
Title
Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.
Severity
8.8 (High)
SSVC
Exploitation: none
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://www.ibm.com/support/pages/node/7271092 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.0.0 , ≤ 1.8.4
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-6542 (GCVE-0-2026-6542)
Vulnerability from nvd – Published: 2026-04-30 21:16 – Updated: 2026-05-01 15:00
VLAI
Title
Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id
Summary
IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7270886 | vendor-advisorypatch |
Impacted products
1 product
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Affected:
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cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3345 (GCVE-0-2026-3345)
Vulnerability from nvd – Published: 2026-04-30 21:11 – Updated: 2026-05-27 12:23
VLAI
Title
Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint
Summary
IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
Severity
6.5 (Medium)
SSVC
Exploitation: none
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://www.ibm.com/support/pages/node/7271094 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
0 , ≤ 1.8.4
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-4503 (GCVE-0-2026-4503)
Vulnerability from nvd – Published: 2026-04-30 20:48 – Updated: 2026-06-12 18:09
VLAI
Title
Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerability in Langflow Desktop Image Download Endpoint
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271099 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.0.0 , ≤ 1.8.4
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-4502 (GCVE-0-2026-4502)
Vulnerability from nvd – Published: 2026-04-30 20:57 – Updated: 2026-06-12 20:28
VLAI
Title
Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API
Summary
IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.
Severity
6.5 (Medium)
SSVC
Exploitation: none
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://www.ibm.com/support/pages/node/7271097 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.2.0 , ≤ 1.8.4
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cpe:2.3:a:ibm:langflow_desktop:1.2.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3346 (GCVE-0-2026-3346)
Vulnerability from nvd – Published: 2026-04-30 21:06 – Updated: 2026-05-01 16:38
VLAI
Title
Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw
Summary
IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271095 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
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cpe:2.3:a:ibm:langflow_desktop:1.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3340 (GCVE-0-2026-3340)
Vulnerability from nvd – Published: 2026-04-30 21:04 – Updated: 2026-05-01 16:38
VLAI
Title
Server-Side Request Forgery (SSRF) in Langflow URL Component
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271096 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
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1.0.0 , ≤ 1.8.4
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cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3357 (GCVE-0-2026-3357)
Vulnerability from nvd – Published: 2026-04-08 00:19 – Updated: 2026-04-08 15:41
VLAI
Title
IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file
Summary
IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7268428 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.6.0 , ≤ 1.8.2
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.2:*:*:*:*:*:*:* |
Credits
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CVE-2026-34046 (GCVE-0-2026-34046)
Vulnerability from nvd – Published: 2026-03-27 20:06 – Updated: 2026-04-01 03:55
VLAI
Title
Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/8956 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.5.1
|
|
| langflow-ai | langflow-base |
Affected:
< 0.5.1
|
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CVE-2026-33873 (GCVE-0-2026-33873)
Vulnerability from nvd – Published: 2026-03-27 20:04 – Updated: 2026-04-02 13:03
VLAI
Title
Langflow has Authenticated Code Execution in Agentic Assistant Validation
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
16 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
|
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CVE-2026-3341 (GCVE-0-2026-3341)
Vulnerability from cvelistv5 – Published: 2026-06-11 14:47 – Updated: 2026-06-11 15:46
VLAI
Title
IBM Langflow Desktop 1.0.0 - 1.9.2 DNS Rebinding Bypasses SSRF Protection Allowing Access to Internal Services
Summary
IBM Langflow Desktop 1.0.0 through 1.9.2 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7275444 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.0.0 , ≤ 1.9.2
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CVE-2026-7787 (GCVE-0-2026-7787)
Vulnerability from cvelistv5 – Published: 2026-06-11 14:41 – Updated: 2026-06-11 16:08
VLAI
Title
Unauthenticated Session History Access via Public Flow Execution
Summary
IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7275453 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
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CVE-2026-7528 (GCVE-0-2026-7528)
Vulnerability from cvelistv5 – Published: 2026-05-27 13:16 – Updated: 2026-05-27 15:30
VLAI
Title
Unauthenticated File Upload Vulnerability Allows Disk Space Exhaustion and Path Disclosure in Langflow OSS
Summary
IBM Langflow OSS 1.0.0 through 1.9.0 could allow a denial of service due to uncontrolled resource consumption.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7273427 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
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1.0.0 , ≤ 1.9.0
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CVE-2026-7524 (GCVE-0-2026-7524)
Vulnerability from cvelistv5 – Published: 2026-05-27 13:14 – Updated: 2026-05-28 13:26
VLAI
Title
Path Traversal Vulnerability in File Processing Components Allows Unauthorized File System Access and Potential Remote Code Execution
Summary
IBM Langflow OSS 1.0.0 through 1.9.1 could allow remote code execution due to improper validation of symbolic links during archive extraction.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
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://www.ibm.com/support/pages/node/7273426 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.9.1
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cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.9.1:*:*:*:*:*:*:* |
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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-2026-6542 (GCVE-0-2026-6542)
Vulnerability from cvelistv5 – Published: 2026-04-30 21:16 – Updated: 2026-05-01 15:00
VLAI
Title
Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id
Summary
IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7270886 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
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CVE-2026-6543 (GCVE-0-2026-6543)
Vulnerability from cvelistv5 – Published: 2026-04-30 21:11 – Updated: 2026-05-02 03:55
VLAI
Title
Authenticated Remote Code Execution Vulnerability in Langflow Code Validation Endpoint
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.
Severity
8.8 (High)
SSVC
Exploitation: none
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://www.ibm.com/support/pages/node/7271092 | vendor-advisorypatch |
Impacted products
1 product
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CVE-2026-3345 (GCVE-0-2026-3345)
Vulnerability from cvelistv5 – Published: 2026-04-30 21:11 – Updated: 2026-05-27 12:23
VLAI
Title
Path Traversal and Arbitrary File Write Vulnerability in IBM Langflow Desktop API v2 File Upload Endpoint
Summary
IBM Langflow Desktop <=1.8.4 Langflow could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.
Severity
6.5 (Medium)
SSVC
Exploitation: none
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://www.ibm.com/support/pages/node/7271094 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
0 , ≤ 1.8.4
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3346 (GCVE-0-2026-3346)
Vulnerability from cvelistv5 – Published: 2026-04-30 21:06 – Updated: 2026-05-01 16:38
VLAI
Title
Stored Cross-Site Scripting (XSS) in Langflow Markdown Rendering via rehypeRaw
Summary
IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271095 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
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CVE-2026-3340 (GCVE-0-2026-3340)
Vulnerability from cvelistv5 – Published: 2026-04-30 21:04 – Updated: 2026-05-01 16:38
VLAI
Title
Server-Side Request Forgery (SSRF) in Langflow URL Component
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 IBM Langflow is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271096 | vendor-advisorypatch |
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1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
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1.0.0 , ≤ 1.8.4
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CVE-2026-4502 (GCVE-0-2026-4502)
Vulnerability from cvelistv5 – Published: 2026-04-30 20:57 – Updated: 2026-06-12 20:28
VLAI
Title
Arbitrary File Write and Remote Code Execution Vulnerability in Langflow v2 API
Summary
IBM Langflow Desktop 1.2.0 through 1.8.4 Langflow could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.
Severity
6.5 (Medium)
SSVC
Exploitation: none
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
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| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271097 | vendor-advisorypatch |
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CVE-2026-4503 (GCVE-0-2026-4503)
Vulnerability from cvelistv5 – Published: 2026-04-30 20:48 – Updated: 2026-06-12 18:09
VLAI
Title
Unauthenticated Insecure Direct Object Reference (IDOR) Vulnerability in Langflow Desktop Image Download Endpoint
Summary
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7271099 | vendor-advisorypatch |
Impacted products
1 product
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|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
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cpe:2.3:a:ibm:langflow_desktop:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:* |
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CVE-2026-3357 (GCVE-0-2026-3357)
Vulnerability from cvelistv5 – Published: 2026-04-08 00:19 – Updated: 2026-04-08 15:41
VLAI
Title
IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file
Summary
IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7268428 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow Desktop |
Affected:
1.6.0 , ≤ 1.8.2
(semver)
cpe:2.3:a:ibm:langflow_desktop:1.6.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_desktop:1.8.2:*:*:*:*:*:*:* |
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CVE-2026-34046 (GCVE-0-2026-34046)
Vulnerability from cvelistv5 – Published: 2026-03-27 20:06 – Updated: 2026-04-01 03:55
VLAI
Title
Langflow: Authenticated Users Can Read, Modify, and Delete Any Flow via Missing Ownership Check
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/langflow-ai/langflow/security/… | x_refsource_CONFIRM |
| https://github.com/langflow-ai/langflow/pull/8956 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.5.1
|
|
| langflow-ai | langflow-base |
Affected:
< 0.5.1
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CVE-2026-33873 (GCVE-0-2026-33873)
Vulnerability from cvelistv5 – Published: 2026-03-27 20:04 – Updated: 2026-04-02 13:03
VLAI
Title
Langflow has Authenticated Code Execution in Agentic Assistant Validation
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
16 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| langflow-ai | langflow |
Affected:
< 1.9.0
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"url": "https://github.com/langflow-ai/langflow/blob/f7f4d1e70ba5eecd18162ec96f3571c2cfbcd1fc/src/lfx/src/lfx/custom/validate.py#L394-L399"
},
{
"name": "https://github.com/langflow-ai/langflow/blob/f7f4d1e70ba5eecd18162ec96f3571c2cfbcd1fc/src/lfx/src/lfx/custom/validate.py#L441-L443",
"tags": [
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],
"url": "https://github.com/langflow-ai/langflow/blob/f7f4d1e70ba5eecd18162ec96f3571c2cfbcd1fc/src/lfx/src/lfx/custom/validate.py#L441-L443"
},
{
"name": "https://github.com/langflow-ai/langflow/blob/f7f4d1e70ba5eecd18162ec96f3571c2cfbcd1fc/src/lfx/src/lfx/services/settings/auth.py#L71-L87",
"tags": [
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],
"url": "https://github.com/langflow-ai/langflow/blob/f7f4d1e70ba5eecd18162ec96f3571c2cfbcd1fc/src/lfx/src/lfx/services/settings/auth.py#L71-L87"
}
],
"source": {
"advisory": "GHSA-v8hw-mh8c-jxfc",
"discovery": "UNKNOWN"
},
"title": "Langflow has Authenticated Code Execution in Agentic Assistant Validation"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-33873",
"datePublished": "2026-03-27T20:04:23.646Z",
"dateReserved": "2026-03-24T15:10:05.679Z",
"dateUpdated": "2026-04-02T13:03:34.809Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}