{"id":"CVE-2026-115519","kind":"vulnerability","aliases":["CVE-2026-115519"],"related":[],"title":"KNIME Business Hub: session cookies missing security flags, enabling session compromise","description":"Missing security attributes on sensitive cookies in KNIME Business Hub before version 1.19.0 allow an unauthenticated remote attacker to compromise user sessions if other security issues such as a cross-site scripting vulnerability or a man-in-the-middle attack are present. A workaround is not possible.","summary":"KNIME Business Hub before 1.19.0 sets sensitive cookies without their security attributes. An unauthenticated remote attacker can compromise user sessions only when another flaw such as XSS or a man-in-the-middle position is also present.","severity":"low","cvss":2.1,"epss":0.00186,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["knime","other","self-hosted"],"not_affected_if":["version-1.19.0-or-later"],"how_to_check":"- Check the installed KNIME Business Hub version against `1.19.0`\n- Unknown whether the sources give a cookie-inspection command or setting","fix":"- Upgrade KNIME Business Hub to `1.19.0` or later\n- No workaround is available per the sources","status":"open","published_at":"2026-10-22T19:17:48+00:00","first_seen_at":"2026-10-23T21:57:31+00:00","triaged_at":"2026-10-25T04:50:01+00:00","updated_at":"2026-10-25T04:50:01+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-25T04:50:01Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade KNIME Business Hub to `1.19.0` or later\n- No workaround is available per the sources","reach":"internet","title":"KNIME Business Hub: session cookies missing security flags, enabling session compromise","impact":"medium","summary":"KNIME Business Hub before 1.19.0 sets sensitive cookies without their security attributes. An unauthenticated remote attacker can compromise user sessions only when another flaw such as XSS or a man-in-the-middle position is also present.","category":"other","nicknames":[],"who_cares":["knime","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker hijacks user sessions when chained with another flaw","analyst_note":"","how_to_check":"- Check the installed KNIME Business Hub version against `1.19.0`\n- Unknown whether the sources give a cookie-inspection command or setting","needs_analyst":false,"not_affected_if":["version-1.19.0-or-later"],"who_is_affected":"Teams running KNIME Business Hub before `1.19.0`. The exposure depends on a second weakness such as XSS or a man-in-the-middle position on the connection, so the risk is lower on hardened networks with TLS everywhere. Teams on `1.19.0` or later are not affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.00058,"input_tokens":3357,"output_tokens":488,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-115519':14A,17A '-2026':13A,16A '1.19.0':27B,73C 'allow':74C 'also':59B 'anoth':45B 'attack':38B,78C,102C 'attribut':34B,63C 'busi':2A,24B,69C 'compromis':11A,40B,80C 'cooki':5A,30B,66C 'cross':91C 'cross-sit':90C 'cve':12A,15A 'enabl':9A 'flag':8A 'flaw':46B 'host':22B 'hub':3A,25B,70C 'issu':86C 'knime':1A,18B,23B,68C 'man':53B,98C 'man-in-the-middl':52B,97C 'middl':56B,101C 'miss':6A,61C 'posit':57B 'possibl':109C 'present':60B,104C 'remot':37B,77C 'script':93C 'secur':7A,33B,62C,85C 'self':21B 'self-host':20B 'sensit':29B,65C 'session':4A,10A,42B,82C 'set':28B 'site':92C 'unauthent':36B,76C 'user':41B,81C 'version':72C 'vulner':94C 'without':31B 'workaround':106C 'xss':49B","nicknames":[],"mitigations":[],"who_affected":"Teams running KNIME Business Hub before `1.19.0`. The exposure depends on a second weakness such as XSS or a man-in-the-middle position on the connection, so the risk is lower on hardened networks with TLS everywhere. Teams on `1.19.0` or later are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T19:17:48+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"security@knime.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-115519","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115519","severity":null,"published_at":"2026-10-22T19:17:48+00:00","modified_at":"2026-10-23T19:43:46+00:00","first_seen_at":"2026-10-23T21:57:31+00:00","fetched_at":"2026-10-23T22:29:02+00:00","note":null},{"source":"epss","external_id":"CVE-2026-115519","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115519","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:51+00:00","fetched_at":"2026-10-24T07:15:51+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"}