{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18729 exists.","fix":"No fix has been published for CVE-2026-18729 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18729 is a high-severity code injection vulnerability in Langflow Langflow, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-18729 and fix it if it is affected.\n\nWhat it is: CVE-2026-18729 is a high-severity code injection vulnerability in Langflow Langflow, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18729 exists.\n\nAffected product: Langflow Langflow. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-18729/ (Markdown: https://insights.sbomify.com/CVE-2026-18729/index.md)","id":"CVE-2026-18729","markdown":"https://insights.sbomify.com/CVE-2026-18729/index.md","name":"CVE-2026-18729","record":{"aliases":["GHSA-q78m-9m47-w7gw"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Langflow OSS","requires_auth":"low_privilege","summary":"Remote authenticated attackers can execute arbitrary code in IBM Langflow OSS due to insufficient code-execution policy enforcement.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"langflow","vendor":"langflow"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote authenticated attacker to execute arbitrary code due to improper control of generation of code.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-08-28","github_poc":1,"max_poc_stars":1,"metasploit":1,"nuclei":0,"refs":[{"date":"2026-08-29T22:48:19Z","kind":"github_poc","ref":"https://github.com/rmhowe425/POC-CVE-2026-18729","stars":1,"title":"Proof of concept exploit code for CVE-2026-18729"},{"date":"2026-08-28","kind":"metasploit","ref":"exploit/multi/http/langflow_auth_rce_cve_2026_18729","stars":null,"title":"Langflow AI Custom Component Authenticated RCE"}],"tier":"weaponised"},"has_fix":false,"headline":"Code injection in Langflow OSS","id":"CVE-2026-18729","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"langflow:langflow","products":["langflow:langflow"],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Server-side request forgery in Enterprise Server","id":"CVE-2026-18730"},"packages":[],"prev":{"headline":"Open-iscsi: open-iscsi: integer underflow in iscsiuio ipv4 dhcp parsing","id":"CVE-2026-18728"},"products":["Langflow OSS"],"published":"2026-08-28","related":[{"cvss_score":9.8,"headline":"IBM Langflow Code Injection","id":"CVE-2026-9198","kev_date_added":"2026-08-04","published":"2026-07-17"},{"cvss_score":9.8,"headline":"Langflow Inclusion of Functionality from Untrusted Control Sphere","id":"CVE-2026-0770","kev_date_added":"2026-07-21","published":"2026-01-23"},{"cvss_score":9.8,"headline":"Langflow Missing Authentication","id":"CVE-2025-3248","kev_date_added":"2025-05-05","published":"2025-04-07"},{"cvss_score":9.4,"headline":"Langflow Origin Validation Error","id":"CVE-2025-34291","kev_date_added":"2026-05-21","published":"2025-12-05"},{"cvss_score":9.3,"headline":"Langflow Code Injection","id":"CVE-2026-33017","kev_date_added":"2026-03-25","published":"2026-03-20"},{"cvss_score":8.4,"headline":"Langflow Authorization Bypass Through User-Controlled Key","id":"CVE-2026-55255","kev_date_added":"2026-07-07","published":"2026-06-23"},{"cvss_score":10,"headline":"Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flows","id":"CVE-2026-10134","kev_date_added":null,"published":"2026-06-30"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["IBM"]},"summary":"Remote authenticated attackers can execute arbitrary code in IBM Langflow OSS due to insufficient code-execution policy enforcement.","url":"https://insights.sbomify.com/CVE-2026-18729/"}