{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-33484", "tracking": { "current_release_date": "2026-03-26T00:50:20.758381Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-33484", "initial_release_date": "2026-03-20T21:41:05.092629Z", "revision_history": [ { "date": "2026-03-20T21:41:05.092629Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T21:41:08.997905Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-23T13:46:33.022922Z", "number": "3", "summary": "Source connected.| CVE status created. (valid)| Products connected (2).| References created (5)." }, { "date": "2026-03-23T13:46:40.048315Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-24T20:48:43.832361Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (1).| References created (1).| CWES updated (1)." }, { "date": "2026-03-24T20:48:46.365471Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-03-24T20:49:40.412277Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-03-24T20:49:42.907702Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-03-24T20:53:32.214028Z", "number": "9", "summary": "Products created (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-03-24T20:53:34.939198Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-24T20:57:44.928116Z", "number": "11", "summary": "Unknown change." }, { "date": "2026-03-24T21:19:28.792833Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-25T21:50:15.493362Z", "number": "13", "summary": "References created (1)." }, { "date": "2026-03-25T21:50:17.224197Z", "number": "14", "summary": "NCSC Score updated." }, { "date": "2026-03-26T00:38:30.095325Z", "number": "15", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (65).| Product Identifiers created (65).| Products created (1).| References created (2).| CWES updated (1)." }, { "date": "2026-03-26T00:38:43.564006Z", "number": "16", "summary": "NCSC Score updated." }, { "date": "2026-03-26T00:50:17.754381Z", "number": "17", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-26T00:50:19.661486Z", "number": "18", "summary": "NCSC Score updated." } ], "status": "interim", "version": "18" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<1.7.0", "product": { "name": "vers:unknown/<1.7.0", "product_id": "CSAFPID-5892271" } }, { "category": "product_version_range", "name": "vers:unknown/<1.9.0", "product": { "name": "vers:unknown/<1.9.0", "product_id": "CSAFPID-5875108" } } ], "category": "product_name", "name": "Langflow" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=1.0.0|<1.9.0", "product": { "name": "vers:unknown/>=1.0.0|<1.9.0", "product_id": "CSAFPID-5902769", "product_identification_helper": { "cpe": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "langflow" } ], "category": "vendor", "name": "langflow" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/1.0.0", "product": { "name": "vers:unknown/1.0.0", "product_id": "CSAFPID-3234919", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.1", "product": { "name": "vers:unknown/1.0.1", "product_id": "CSAFPID-3234982", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.10", "product": { "name": "vers:unknown/1.0.10", "product_id": "CSAFPID-3234983", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.10" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.11", "product": { "name": "vers:unknown/1.0.11", "product_id": "CSAFPID-3234984", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.11" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.12", "product": { "name": "vers:unknown/1.0.12", "product_id": "CSAFPID-3234985", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.12" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.13", "product": { "name": "vers:unknown/1.0.13", "product_id": "CSAFPID-4774140", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.13" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.14", "product": { "name": "vers:unknown/1.0.14", "product_id": "CSAFPID-4774141", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.14" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.15", "product": { "name": "vers:unknown/1.0.15", "product_id": "CSAFPID-4774142", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.15" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.16", "product": { "name": "vers:unknown/1.0.16", "product_id": "CSAFPID-4774143", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.16" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.17", "product": { "name": "vers:unknown/1.0.17", "product_id": "CSAFPID-4774144", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.17" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.18", "product": { "name": "vers:unknown/1.0.18", "product_id": "CSAFPID-4774145", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.18" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.19", "product": { "name": "vers:unknown/1.0.19", "product_id": "CSAFPID-4774146", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.19" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.19.post1", "product": { "name": "vers:unknown/1.0.19.post1", "product_id": "CSAFPID-4774147", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.19.post1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.19.post2", "product": { "name": "vers:unknown/1.0.19.post2", "product_id": "CSAFPID-4774148", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.19.post2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.2", "product": { "name": "vers:unknown/1.0.2", "product_id": "CSAFPID-3234986", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.3", "product": { "name": "vers:unknown/1.0.3", "product_id": "CSAFPID-3234987", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.4", "product": { "name": "vers:unknown/1.0.4", "product_id": "CSAFPID-3234988", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.5", "product": { "name": "vers:unknown/1.0.5", "product_id": "CSAFPID-3234989", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.6", "product": { "name": "vers:unknown/1.0.6", "product_id": "CSAFPID-3234990", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.6" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.7", "product": { "name": "vers:unknown/1.0.7", "product_id": "CSAFPID-3234991", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.7" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.8", "product": { "name": "vers:unknown/1.0.8", "product_id": "CSAFPID-3234992", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.8" } } }, { "category": "product_version_range", "name": "vers:unknown/1.0.9", "product": { "name": "vers:unknown/1.0.9", "product_id": "CSAFPID-3234993", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.0.9" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.0", "product": { "name": "vers:unknown/1.1.0", "product_id": "CSAFPID-4774149", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.1", "product": { "name": "vers:unknown/1.1.1", "product_id": "CSAFPID-4774150", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.2", "product": { "name": "vers:unknown/1.1.2", "product_id": "CSAFPID-3739206", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.3", "product": { "name": "vers:unknown/1.1.3", "product_id": "CSAFPID-3739207", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.4", "product": { "name": "vers:unknown/1.1.4", "product_id": "CSAFPID-3739208", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.4.post1", "product": { "name": "vers:unknown/1.1.4.post1", "product_id": "CSAFPID-4774151", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.1.4.post1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.2.0", "product": { "name": "vers:unknown/1.2.0", "product_id": "CSAFPID-3739209", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.2.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.0", "product": { "name": "vers:unknown/1.3.0", "product_id": "CSAFPID-3739210", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.3.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.1", "product": { "name": "vers:unknown/1.3.1", "product_id": "CSAFPID-3739211", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.3.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.2", "product": { "name": "vers:unknown/1.3.2", "product_id": "CSAFPID-3739212", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.3.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.3", "product": { "name": "vers:unknown/1.3.3", "product_id": "CSAFPID-3739213", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.3.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3.4", "product": { "name": "vers:unknown/1.3.4", "product_id": "CSAFPID-3739214", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.3.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.0", "product": { "name": "vers:unknown/1.4.0", "product_id": "CSAFPID-3739215", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.4.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.1", "product": { "name": "vers:unknown/1.4.1", "product_id": "CSAFPID-3739216", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.4.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.2", "product": { "name": "vers:unknown/1.4.2", "product_id": "CSAFPID-3739217", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.4.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4.3", "product": { "name": "vers:unknown/1.4.3", "product_id": "CSAFPID-4818258", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.4.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.0", "product": { "name": "vers:unknown/1.5.0", "product_id": "CSAFPID-4818259", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.5.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.0.post1", "product": { "name": "vers:unknown/1.5.0.post1", "product_id": "CSAFPID-3739218", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.5.0.post1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.0.post2", "product": { "name": "vers:unknown/1.5.0.post2", "product_id": "CSAFPID-5281259", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.5.0.post2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5.1", "product": { "name": "vers:unknown/1.5.1", "product_id": "CSAFPID-5288776", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.5.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.0", "product": { "name": "vers:unknown/1.6.0", "product_id": "CSAFPID-5288777", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.1", "product": { "name": "vers:unknown/1.6.1", "product_id": "CSAFPID-5288778", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.2", "product": { "name": "vers:unknown/1.6.2", "product_id": "CSAFPID-5288779", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.3", "product": { "name": "vers:unknown/1.6.3", "product_id": "CSAFPID-5288780", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.4", "product": { "name": "vers:unknown/1.6.4", "product_id": "CSAFPID-5288781", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.5", "product": { "name": "vers:unknown/1.6.5", "product_id": "CSAFPID-5288782", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.6", "product": { "name": "vers:unknown/1.6.6", "product_id": "CSAFPID-5288783", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.6" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.7", "product": { "name": "vers:unknown/1.6.7", "product_id": "CSAFPID-5288784", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.7" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.8", "product": { "name": "vers:unknown/1.6.8", "product_id": "CSAFPID-5288785", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.8" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.9", "product": { "name": "vers:unknown/1.6.9", "product_id": "CSAFPID-5288786", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.6.9" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.0", "product": { "name": "vers:unknown/1.7.0", "product_id": "CSAFPID-5288787", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.7.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.1", "product": { "name": "vers:unknown/1.7.1", "product_id": "CSAFPID-5446094", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.7.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.2", "product": { "name": "vers:unknown/1.7.2", "product_id": "CSAFPID-5667815", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.7.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7.3", "product": { "name": "vers:unknown/1.7.3", "product_id": "CSAFPID-5667816", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.7.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0", "product": { "name": "vers:unknown/1.8.0", "product_id": "CSAFPID-5907976", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc0", "product": { "name": "vers:unknown/1.8.0rc0", "product_id": "CSAFPID-5737696", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc0" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc1", "product": { "name": "vers:unknown/1.8.0rc1", "product_id": "CSAFPID-5737697", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc2", "product": { "name": "vers:unknown/1.8.0rc2", "product_id": "CSAFPID-5737698", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc3", "product": { "name": "vers:unknown/1.8.0rc3", "product_id": "CSAFPID-5907977", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc4", "product": { "name": "vers:unknown/1.8.0rc4", "product_id": "CSAFPID-5907978", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc5", "product": { "name": "vers:unknown/1.8.0rc5", "product_id": "CSAFPID-5907979", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.0rc6", "product": { "name": "vers:unknown/1.8.0rc6", "product_id": "CSAFPID-5907980", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.0rc6" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8.1", "product": { "name": "vers:unknown/1.8.1", "product_id": "CSAFPID-5907981", "product_identification_helper": { "purl": "pkg:pypi/langflow@1.8.1" } } }, { "category": "product_version_range", "name": "vers:unknown/>=1.0.0|<1.9.0", "product": { "name": "vers:unknown/>=1.0.0|<1.9.0", "product_id": "CSAFPID-5902377" } }, { "category": "product_version_range", "name": "vers:unknown/>=1.0.0|<=1.8.1", "product": { "name": "vers:unknown/>=1.0.0|<=1.8.1", "product_id": "CSAFPID-5912906" } } ], "category": "product_name", "name": "langflow" } ], "category": "vendor", "name": "langflow-ai" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-33484", "cwe": { "id": "CWE-639", "name": "Authorization Bypass Through User-Controlled Key" }, "notes": [ { "category": "description", "text": "### Summary\nThe `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200.\n\n### Details\n`src/backend/base/langflow/api/v1/files.py:138-164` — `download_image` takes `flow_id`: UUID as a bare path parameter with no Depends(get_flow) or `CurrentActiveUser`. All other file routes (`download_file`, `upload_file`, `list_files`, `delete_file`) use `Depends(get_flow)` which enforces both authentication and ownership. There is no global auth middleware on /api/v1; protection is per-endpoint only.\n\n### PoC\n```\ncurl -v \"http://localhost:7860/api/v1/files/images//\"\n# Returns HTTP 200 with image bytes, no auth header required\n```\n\n### Impact\nUnauthenticated cross-tenant data leak. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials.", "title": "github - https://api.github.com/advisories/GHSA-7grx-3xcx-2xv5" }, { "category": "description", "text": "Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33484.json" }, { "category": "description", "text": "Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33484" }, { "category": "description", "text": "### Summary\nThe `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200.\n\n### Details\n`src/backend/base/langflow/api/v1/files.py:138-164` — `download_image` takes `flow_id`: UUID as a bare path parameter with no Depends(get_flow) or `CurrentActiveUser`. All other file routes (`download_file`, `upload_file`, `list_files`, `delete_file`) use `Depends(get_flow)` which enforces both authentication and ownership. There is no global auth middleware on /api/v1; protection is per-endpoint only.\n\n### PoC\n```\ncurl -v \"http://localhost:7860/api/v1/files/images//\"\n# Returns HTTP 200 with image bytes, no auth header required\n```\n\n### Impact\nUnauthenticated cross-tenant data leak. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-7grx-3xcx-2xv5.json?alt=media" }, { "category": "other", "text": "0.00017", "title": "EPSS" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to (a version of) an uncommon product, The value of the most recent EPSS score, There is cwe data available from source Github, There is exploit data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5875108", "CSAFPID-5892271", "CSAFPID-5902377", "CSAFPID-5902769", "CSAFPID-3234919", "CSAFPID-3234982", "CSAFPID-3234983", "CSAFPID-3234984", "CSAFPID-3234985", "CSAFPID-3234986", "CSAFPID-3234987", "CSAFPID-3234988", "CSAFPID-3234989", "CSAFPID-3234990", "CSAFPID-3234991", "CSAFPID-3234992", "CSAFPID-3234993", "CSAFPID-3739206", "CSAFPID-3739207", "CSAFPID-3739208", "CSAFPID-3739209", "CSAFPID-3739210", "CSAFPID-3739211", "CSAFPID-3739212", "CSAFPID-3739213", "CSAFPID-3739214", "CSAFPID-3739215", "CSAFPID-3739216", "CSAFPID-3739217", "CSAFPID-3739218", "CSAFPID-4774140", "CSAFPID-4774141", "CSAFPID-4774142", "CSAFPID-4774143", "CSAFPID-4774144", "CSAFPID-4774145", "CSAFPID-4774146", "CSAFPID-4774147", "CSAFPID-4774148", "CSAFPID-4774149", "CSAFPID-4774150", "CSAFPID-4774151", "CSAFPID-4818258", "CSAFPID-4818259", "CSAFPID-5281259", "CSAFPID-5288776", "CSAFPID-5288777", "CSAFPID-5288778", "CSAFPID-5288779", "CSAFPID-5288780", "CSAFPID-5288781", "CSAFPID-5288782", "CSAFPID-5288783", "CSAFPID-5288784", "CSAFPID-5288785", "CSAFPID-5288786", "CSAFPID-5288787", "CSAFPID-5446094", "CSAFPID-5667815", "CSAFPID-5667816", "CSAFPID-5737696", "CSAFPID-5737697", "CSAFPID-5737698", "CSAFPID-5907976", "CSAFPID-5907977", "CSAFPID-5907978", "CSAFPID-5907979", "CSAFPID-5907980", "CSAFPID-5907981", "CSAFPID-5912906" ] }, "references": [ { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-7grx-3xcx-2xv5" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0823.json" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/33xxx/CVE-2026-33484.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-33484" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-7grx-3xcx-2xv5.json?alt=media" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; github; nvd; osv", "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-7grx-3xcx-2xv5" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0823.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0823" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-87cc-65ph-2j4w" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-ph9w-r52h-28p7" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33484" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-3234919", "CSAFPID-3234982", "CSAFPID-3234983", "CSAFPID-3234984", "CSAFPID-3234985", "CSAFPID-3234986", "CSAFPID-3234987", "CSAFPID-3234988", "CSAFPID-3234989", "CSAFPID-3234990", "CSAFPID-3234991", "CSAFPID-3234992", "CSAFPID-3234993", "CSAFPID-3739206", "CSAFPID-3739207", "CSAFPID-3739208", "CSAFPID-3739209", "CSAFPID-3739210", "CSAFPID-3739211", "CSAFPID-3739212", "CSAFPID-3739213", "CSAFPID-3739214", "CSAFPID-3739215", "CSAFPID-3739216", "CSAFPID-3739217", "CSAFPID-3739218", "CSAFPID-4774140", "CSAFPID-4774141", "CSAFPID-4774142", "CSAFPID-4774143", "CSAFPID-4774144", "CSAFPID-4774145", "CSAFPID-4774146", "CSAFPID-4774147", "CSAFPID-4774148", "CSAFPID-4774149", "CSAFPID-4774150", "CSAFPID-4774151", "CSAFPID-4818258", "CSAFPID-4818259", "CSAFPID-5281259", "CSAFPID-5288776", "CSAFPID-5288777", "CSAFPID-5288778", "CSAFPID-5288779", "CSAFPID-5288780", "CSAFPID-5288781", "CSAFPID-5288782", "CSAFPID-5288783", "CSAFPID-5288784", "CSAFPID-5288785", "CSAFPID-5288786", "CSAFPID-5288787", "CSAFPID-5446094", "CSAFPID-5667815", "CSAFPID-5667816", "CSAFPID-5737696", "CSAFPID-5737697", "CSAFPID-5737698", "CSAFPID-5875108", "CSAFPID-5892271", "CSAFPID-5902377", "CSAFPID-5902769", "CSAFPID-5907976", "CSAFPID-5907977", "CSAFPID-5907978", "CSAFPID-5907979", "CSAFPID-5907980", "CSAFPID-5907981", "CSAFPID-5912906" ] } ], "title": "CVE-2026-33484" } ] }