{"id":"CVE-2026-104315","kind":"vulnerability","aliases":["CVE-2026-104315"],"related":[],"title":"Langflow: authenticated users can make the server send requests internally","description":"IBM Langflow OSS 1.0.0 through 1.12.3 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.","summary":"IBM Langflow OSS versions 1.0.0 through 1.12.3 have a server-side request forgery flaw. A logged-in attacker can make the server send requests to other systems, which can expose internal network details or help with further attacks.","severity":"medium","cvss":4.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ai-agents","ai-tooling","langflow","self-hosted"],"not_affected_if":["unauthenticated-only-access","version-outside-range"],"how_to_check":"- Check the installed Langflow version with `langflow --version` or the package manager, and compare it with the affected range 1.0.0 through 1.12.3.","fix":"- Move to a Langflow version later than `1.12.3`; the exact fixed version is unknown from the sources.","status":"open","published_at":"2026-10-29T16:17:43+00:00","first_seen_at":"2026-10-29T16:25:54+00:00","triaged_at":"2026-10-29T16:32:02+00:00","updated_at":"2026-10-29T16:32:02+00:00","category":"ai-tooling","confidence":0.6,"triage":{"at":"2026-10-29T16:32:02Z","model":"claude-haiku-5-5","output":{"fix":"- Move to a Langflow version later than `1.12.3`; the exact fixed version is unknown from the sources.","reach":"network","title":"Langflow: authenticated users can make the server send requests internally","impact":"medium","summary":"IBM Langflow OSS versions 1.0.0 through 1.12.3 have a server-side request forgery flaw. A logged-in attacker can make the server send requests to other systems, which can expose internal network details or help with further attacks.","audience":"businesses","category":"ai-tooling","nicknames":[],"who_cares":["langflow","self-hosted","ai-agents"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Server sends unauthorized requests into internal network, enabling enumeration","analyst_note":"Check the IBM security bulletin and the NVD entry for the fixed version and the affected component or endpoint.","how_to_check":"- Check the installed Langflow version with `langflow --version` or the package manager, and compare it with the affected range 1.0.0 through 1.12.3.\n- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["unauthenticated-only-access","version-outside-range"],"who_is_affected":"Teams running IBM Langflow OSS in the affected range where users have accounts on the instance. The sources say an authenticated attacker is required; they do not describe the specific features or configuration that expose it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000677,"input_tokens":4124,"output_tokens":529,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-104315':13A,16A '-2026':12A,15A '1.0.0':31B,70C '1.12.3':33B,72C 'agent':19B 'ai':18B,21B 'ai-ag':17B 'ai-tool':20B 'allow':84C 'attack':46B,66B,87C,103C 'authent':2A,86C 'cve':11A,14A 'detail':61B 'enumer':99C 'expos':58B 'facilit':101C 'flaw':41B 'forgeri':40B,80C 'help':63B 'host':26B 'ibm':27B,67C 'intern':10A,59B 'langflow':1A,23B,28B,68C 'lead':96C 'log':44B 'logged-in':43B 'make':5A,48B 'may':83C 'network':60B,98C 'oss':29B,69C 'potenti':95C 'request':9A,39B,52B,79C,91C 'self':25B 'self-host':24B 'send':8A,51B,89C 'server':7A,37B,50B,77C 'server-sid':36B,76C 'side':38B,78C 'ssrf':81C 'system':55B,94C 'tool':22B 'unauthor':90C 'user':3A 'version':30B 'vulner':74C","nicknames":[],"mitigations":[],"who_affected":"Teams running IBM Langflow OSS in the affected range where users have accounts on the instance. The sources say an authenticated attacker is required; they do not describe the specific features or configuration that expose it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"first_public_at":"2026-10-29T16:17:43+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-104315","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104315","severity":null,"published_at":"2026-10-29T16:17:43+00:00","modified_at":"2026-10-29T16:17:43+00:00","first_seen_at":"2026-10-29T16:25:54+00:00","fetched_at":"2026-10-29T16:25:54+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}