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CNVD-2026-29420

Vulnerability from cnvd - Published: 2026-07-30

Title

IBM Langflow Desktop路径遍历漏洞

Description

IBM Langflow Desktop是一个基于图形界面的AI工作流开发工具，主要用于构建和部署AI应用。 IBM Langflow Desktop存在路径遍历漏洞。该漏洞源于未能正确处理URL请求中的"点点点"序列(/../)，攻击者可利用该漏洞通过发送特制请求在系统上写入任意文件。

Severity

中

Patch Name

IBM Langflow Desktop路径遍历漏洞的补丁

Patch Description

IBM Langflow Desktop是一个基于图形界面的AI工作流开发工具，主要用于构建和部署AI应用。 IBM Langflow Desktop存在路径遍历漏洞。该漏洞源于未能正确处理URL请求中的"点点点"序列(/../)，攻击者可利用该漏洞通过发送特制请求在系统上写入任意文件。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.ibm.com/support/pages/node/7271097

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-4502

Impacted products

Name
IBM Langflow Desktop >=1.2.0，<=1.8.4

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-4502",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-4502"
    }
  },
  "description": "IBM Langflow Desktop\u662f\u4e00\u4e2a\u57fa\u4e8e\u56fe\u5f62\u754c\u9762\u7684AI\u5de5\u4f5c\u6d41\u5f00\u53d1\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u4e8e\u6784\u5efa\u548c\u90e8\u7f72AI\u5e94\u7528\u3002\n\nIBM Langflow Desktop\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u5904\u7406URL\u8bf7\u6c42\u4e2d\u7684\"\u70b9\u70b9\u70b9\"\u5e8f\u5217(/../)\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u7279\u5236\u8bf7\u6c42\u5728\u7cfb\u7edf\u4e0a\u5199\u5165\u4efb\u610f\u6587\u4ef6\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.ibm.com/support/pages/node/7271097",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-29420",
  "openTime": "2026-07-30",
  "patchDescription": "IBM Langflow Desktop\u662f\u4e00\u4e2a\u57fa\u4e8e\u56fe\u5f62\u754c\u9762\u7684AI\u5de5\u4f5c\u6d41\u5f00\u53d1\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u4e8e\u6784\u5efa\u548c\u90e8\u7f72AI\u5e94\u7528\u3002\r\n\r\nIBM Langflow Desktop\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u5904\u7406URL\u8bf7\u6c42\u4e2d\u7684\"\u70b9\u70b9\u70b9\"\u5e8f\u5217(/../)\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u7279\u5236\u8bf7\u6c42\u5728\u7cfb\u7edf\u4e0a\u5199\u5165\u4efb\u610f\u6587\u4ef6\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 Desktop\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "IBM Langflow Desktop \u003e=1.2.0\uff0c\u003c=1.8.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-4502",
  "serverity": "\u4e2d",
  "submitTime": "2026-05-06",
  "title": "IBM Langflow Desktop\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2026-4502 (GCVE-0-2026-4502)

Vulnerability from cvelistv5 – Published: 2026-04-30 20:57 – Updated: 2026-06-12 20:28

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)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-01 14:57 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

ibm mitre root Scorecard

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7271097	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version
IBM	Langflow Desktop	Affected: 1.2.0 , ≤ 1.8.4 (semver) cpe:2.3:a:ibm:langflow_desktop:1.2.0:::::::* cpe:2.3:a:ibm:langflow_desktop:1.8.4:::::::*

Credits

The vulnerability was reported to IBM by Akshat Sinha, Senior SRE Rubrik (https://www.linkedin.com/in/akshat-sinha-568765167).

Show details on NVD website

JSON

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{
  "containers": {
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        "metrics": [
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            "other": {
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                "id": "CVE-2026-4502",
                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-01T14:57:03.183036Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          "dateUpdated": "2026-05-01T14:58:10.215Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "cpes": [
            "cpe:2.3:a:ibm:langflow_desktop:1.2.0:*:*:*:*:*:*:*",
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            }
          ]
        }
      ],
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          "type": "reporter",
          "value": "The vulnerability was reported to IBM by Akshat Sinha, Senior SRE Rubrik (https://www.linkedin.com/in/akshat-sinha-568765167)."
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            }
          ],
          "value": "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\u00a0a specially crafted URL request containing \"dot dot\" sequences (/../) to write arbitrary files on the system."
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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.

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.
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CNVD-2026-29420

CVE-2026-4502 (GCVE-0-2026-4502)

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