Vulnerability-Lookup

CVE-2026-9201 (GCVE-0-2026-9201)

Vulnerability from cvelistv5 – Published: 2026-08-05 18:26 – Updated: 2026-08-17 18:07

Title

Langflow OSS is affected by arbitrary code execution in component generation, validation, and custom component handling

Summary

IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode that restricts execution to trusted component templates is enabled, the application validates component code using a truncated SHA‑256 hash. Because the hash comparison relies on only a portion of the digest, an attacker can craft malicious component code that collides with a trusted template hash and bypasses validation. Successful exploitation allows the attacker to introduce and execute unauthorized Python code within the Langflow process, defeating the intended security control and potentially leading to full compromise of the affected instance.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 00:00 UTC

CWE

CWE-326 - Inadequate Encryption Strength

Assigner

ibm CNA under the mitre root

CNA scorecard B 88/100 over 1308 records in the last 180 days details

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7282646	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	Langflow OSS	Affected: 1.0.0 , ≤ 1.10.3 (semver) cpe:2.3:a:ibm:langflow_oss:1.0.0:::::::* cpe:2.3:a:ibm:langflow_oss:1.10.3:::::::*

Credits

CVE-2026-9201 was reported to IBM by Harish Kolla (GitHub: Har1sh-k (https://github.com/Har1sh-k)).

Show details on NVD website

JSON

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CNVD-2026-32368

Vulnerability from cnvd - Published: 2026-08-18

Title

IBM Langflow OSS代码执行漏洞

Description

IBM Langflow OSS是IBM官方集成并推广使用的‌Langflow开源版本。 IBM Langflow OSS存在代码执行漏洞，该漏洞源于自定义组件验证机制使用截断的SHA-256哈希进行代码校验，哈希比较仅依赖摘要部分导致存在碰撞风险，攻击者可利用该漏洞构造与可信模板哈希冲突的恶意组件代码，绕过强化模式验证并在Langflow进程中执行任意Python代码。

Severity

高

Patch Name

IBM Langflow OSS代码执行漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://www.ibm.com/support/pages/node/7282646

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-9201

Impacted products

Name
IBM Langflow OSS >=1.0.0，<=1.10.3

Show details on source website

JSON

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  "number": "CNVD-2026-32368",
  "openTime": "2026-08-18",
  "patchDescription": "IBM Langflow OSS\u662fIBM\u5b98\u65b9\u96c6\u6210\u5e76\u63a8\u5e7f\u4f7f\u7528\u7684\u200cLangflow\u5f00\u6e90\u7248\u672c\u3002\r\n\r\nIBM Langflow OSS\u5b58\u5728\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u9a8c\u8bc1\u673a\u5236\u4f7f\u7528\u622a\u65ad\u7684SHA-256\u54c8\u5e0c\u8fdb\u884c\u4ee3\u7801\u6821\u9a8c\uff0c\u54c8\u5e0c\u6bd4\u8f83\u4ec5\u4f9d\u8d56\u6458\u8981\u90e8\u5206\u5bfc\u81f4\u5b58\u5728\u78b0\u649e\u98ce\u9669\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6784\u9020\u4e0e\u53ef\u4fe1\u6a21\u677f\u54c8\u5e0c\u51b2\u7a81\u7684\u6076\u610f\u7ec4\u4ef6\u4ee3\u7801\uff0c\u7ed5\u8fc7\u5f3a\u5316\u6a21\u5f0f\u9a8c\u8bc1\u5e76\u5728Langflow\u8fdb\u7a0b\u4e2d\u6267\u884c\u4efb\u610fPython\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "IBM Langflow OSS\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "IBM Langflow OSS \u003e=1.0.0\uff0c\u003c=1.10.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-9201",
  "serverity": "\u9ad8",
  "submitTime": "2026-08-06",
  "title": "IBM Langflow OSS\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

FKIE_CVE-2026-9201

Vulnerability from fkie_nvd - Published: 2026-08-05 19:17 - Updated: 2026-10-24 13:10

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7282646	Vendor Advisory

Impacted products

	Vendor	Product	Version
	langflow	langflow	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "Langflow OSS",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "1.10.3",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D820E7E-FD86-4EE6-9F29-E8DF9EC23F30",
              "versionEndExcluding": "1.11.0",
              "versionStartIncluding": "1.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode that restricts execution to trusted component templates is enabled, the application validates component code using a truncated SHA\u2011256 hash. Because the hash comparison relies on only a portion of the digest, an attacker can craft malicious component code that collides with a trusted template hash and bypasses validation. Successful exploitation allows the attacker to introduce and execute unauthorized Python code within the Langflow process, defeating the intended security control and potentially leading to full compromise of the affected instance."
    },
    {
      "lang": "es",
      "value": "IBM Langflow OSS 1.0.0 hasta 1.10.3 podr\u00eda permitir a un atacante autenticado ejecutar c\u00f3digo arbitrario debido a una debilidad criptogr\u00e1fica en el mecanismo de validaci\u00f3n de componentes personalizados. Cuando el modo de endurecimiento opcional que restringe la ejecuci\u00f3n a plantillas de componentes de confianza est\u00e1 habilitado, la aplicaci\u00f3n valida el c\u00f3digo del componente utilizando un hash SHA?256 truncado. Debido a que la comparaci\u00f3n del hash se basa solo en una porci\u00f3n del resumen, un atacante puede crear c\u00f3digo de componente malicioso que colisiona con un hash de plantilla de confianza y omite la validaci\u00f3n. La explotaci\u00f3n exitosa permite al atacante introducir y ejecutar c\u00f3digo Python no autorizado dentro del proceso de Langflow, derrotando el control de seguridad previsto y potencialmente llevando a un compromiso total de la instancia afectada."
    }
  ],
  "id": "CVE-2026-9201",
  "lastModified": "2026-10-24T13:10:00.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-9201",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-05T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-05T19:17:48.657",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.ibm.com/support/pages/node/7282646"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ],
      "source": "psirt@us.ibm.com",
      "type": "Secondary"
    }
  ]
}

GHSA-WQ52-M42W-XG45

Vulnerability from github – Published: 2026-08-05 21:31 – Updated: 2026-08-05 21:31

Details

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-9201"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-326"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T19:17:48Z",
    "severity": "HIGH"
  },
  "details": "IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode that restricts execution to trusted component templates is enabled, the application validates component code using a truncated SHA\u2011256 hash. Because the hash comparison relies on only a portion of the digest, an attacker can craft malicious component code that collides with a trusted template hash and bypasses validation. Successful exploitation allows the attacker to introduce and execute unauthorized Python code within the Langflow process, defeating the intended security control and potentially leading to full compromise of the affected instance.",
  "id": "GHSA-wq52-m42w-xg45",
  "modified": "2026-08-05T21:31:38Z",
  "published": "2026-08-05T21:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9201"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7282646"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

WID-SEC-W-2026-2675

Vulnerability from csaf_certbund - Published: 2026-08-05 22:00 - Updated: 2026-08-05 22:00

Summary

IBM Langflow Desktop: Mehrere Schwachstellen

Severity

Hoch

Scope

20 vulnerabilities in this advisory, including CVE-2026-9201.

CVE-2026-9201

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-9201 (GCVE-0-2026-9201)

CNVD-2026-32368

FKIE_CVE-2026-9201

GHSA-WQ52-M42W-XG45

WID-SEC-W-2026-2675

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Sightings

Nomenclature

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Related by attack behaviour