CVE-2026-18545 (GCVE-0-2026-18545)

Vulnerability from cvelistv5 – Published: 2026-08-28 20:49 – Updated: 2026-08-28 20:49
VLAI
Title
Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities
Summary
IBM Langflow OSS 1.0.0 through 1.11.1 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.
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7284579 vendor-advisorypatch
Impacted products
Vendor Product Version CPE status
IBM Langflow OSS Affected: 1.0.0 , ≤ 1.11.1 (semver)
    cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:langflow_oss:1.11.1:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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            "cpe:2.3:a:ibm:langflow_oss:1.11.1:*:*:*:*:*:*:*"
          ],
          "product": "Langflow OSS",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "1.11.1",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        }
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            }
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
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        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
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        }
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              "value": "\u003cp\u003eIBM strongly recommends addressing the vulnerability now by upgrading \u003ca href=\"https://pypi.org/project/langflow/\" rel=\"nofollow\"\u003eLangflow OSS to version 1.11.2\u003c/a\u003e\u003c/p\u003e"
            }
          ],
          "value": "IBM strongly recommends addressing the vulnerability now by upgrading  Langflow OSS to version 1.11.2 https://pypi.org/project/langflow/"
        }
      ],
      "title": "Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-18545",
    "datePublished": "2026-08-28T20:49:25.781Z",
    "dateReserved": "2026-07-31T21:21:10.287Z",
    "dateUpdated": "2026-08-28T20:49:25.781Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-08-30",
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      "percentile": "0.09451"
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  }
}



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