Vulnerability-Lookup

GHSA-8F66-77FW-HMVJ

Vulnerability from github – Published: 2026-07-17 21:31 – Updated: 2026-07-17 21:31

Details

IBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user's uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker's workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker's namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach). This breaks the storage ownership boundary between users.

Severity

8.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-13445"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-17T21:17:05Z",
    "severity": "HIGH"
  },
  "details": "IBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user\u0027s uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker\u0027s workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker\u0027s namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach). This breaks the storage ownership boundary between users.",
  "id": "GHSA-8f66-77fw-hmvj",
  "modified": "2026-07-17T21:31:45Z",
  "published": "2026-07-17T21:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13445"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7279990"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-13445 (GCVE-0-2026-13445)

Vulnerability from cvelistv5 – Published: 2026-07-17 20:44 – Updated: 2026-07-17 20:44

Title

Langflow is affected by remote code execution, denial of service, path traversal, and exposed credentials due to multiple unauthenticated and insufficiently authorized API endpoints

Summary

Severity

8.1 (High)


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

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

ibm

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7279990	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version
IBM	Langflow OSS	Affected: 1.0.0 , ≤ 1.10.1 (semver) cpe:2.3:a:ibm:langflow_oss:1.0.0:::::::* cpe:2.3:a:ibm:langflow_oss:1.10.1:::::::*

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:langflow_oss:1.10.1:*:*:*:*:*:*:*"
          ],
          "product": "Langflow OSS",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "1.10.1",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user\u0027s uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker\u0027s workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker\u0027s namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach). This breaks the storage ownership boundary between users.\u003c/p\u003e"
            }
          ],
          "value": "IBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user\u0027s uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker\u0027s workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker\u0027s namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach). This breaks the storage ownership boundary between users."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "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:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T20:44:38.924Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7279990"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM strongly recommends addressing the vulnerability now by upgrading \u003ca href=\"https://pypi.org/project/langflow/\" rel=\"nofollow\"\u003eLangflow OSS to version 1.10.2\u003c/a\u003e\u003c/p\u003e"
            }
          ],
          "value": "IBM strongly recommends addressing the vulnerability now by upgrading  Langflow OSS to version 1.10.2 https://pypi.org/project/langflow/"
        }
      ],
      "title": "Langflow is affected by remote code execution, denial of service, path traversal, and exposed credentials due to multiple unauthenticated and insufficiently authorized API endpoints",
      "x_generator": {
        "engine": "ibm-cvegen"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-13445",
    "datePublished": "2026-07-17T20:44:38.924Z",
    "dateReserved": "2026-06-26T16:40:55.714Z",
    "dateUpdated": "2026-07-17T20:44:38.924Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8F66-77FW-HMVJ

CVE-2026-13445 (GCVE-0-2026-13445)

Tags

Sightings

Nomenclature