{"id":"CVE-2026-101568","kind":"vulnerability","aliases":["CVE-2026-101568"],"related":[],"title":"Helidon: health component lets unauthenticated network users read some data","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-health).  Supported versions that are affected are 3.0.0-3.2.21, 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).","summary":"Oracle Helidon's helidon-health component exposes a subset of data to unauthenticated HTTP requests from the network. An attacker can read some Helidon-accessible information but cannot change it, per the CVSS vector (confidentiality impact only).","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["helidon","java","oracle-fusion-middleware","runtime","self-hosted"],"not_affected_if":["default-config","no-helidon-health"],"how_to_check":"- Check the Helidon version in the project's pom.xml or build file; affected versions are 3.0.0 through 3.2.21, 4.0.0 through 4.5.5, and 27.0.0.\n- Confirm whether the application uses the helidon-health dependency and exposes its health endpoints over HTTP.","fix":"- Upgrade Helidon to a release outside the affected ranges (fixed version unknown from the sources; check Oracle's advisory).\n- Restrict access to health endpoints at the network or proxy layer until patched.","status":"open","published_at":"2026-10-20T22:18:08+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T04:24:27+00:00","updated_at":"2026-10-25T04:24:27+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-25T04:24:27Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Helidon to a release outside the affected ranges (fixed version unknown from the sources; check Oracle's advisory).\n- Restrict access to health endpoints at the network or proxy layer until patched.","reach":"internet","title":"Helidon: health component lets unauthenticated network users read some data","impact":"low","summary":"Oracle Helidon's helidon-health component exposes a subset of data to unauthenticated HTTP requests from the network. An attacker can read some Helidon-accessible information but cannot change it, per the CVSS vector (confidentiality impact only).","category":"runtime","nicknames":[],"who_cares":["java","helidon","oracle-fusion-middleware","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"unauthenticated attacker reads a subset of Helidon-accessible data","analyst_note":"Find the fixed Helidon versions and which health endpoints expose data, via Oracle's Critical Patch Update advisory or the Helidon release notes.","how_to_check":"- Check the Helidon version in the project's pom.xml or build file; affected versions are 3.0.0 through 3.2.21, 4.0.0 through 4.5.5, and 27.0.0.\n- Confirm whether the application uses the helidon-health dependency and exposes its health endpoints over HTTP.","needs_analyst":true,"not_affected_if":["default-config","no-helidon-health"],"who_is_affected":"Applications built on affected Helidon releases that include the helidon-health component and serve its HTTP endpoints to the network. Systems that do not use Helidon, or that do not expose the health endpoints, are unlikely to be affected; the sources do not say which specific data is readable.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000661,"input_tokens":3458,"output_tokens":631,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-101568':13A,16A '-2026':12A,15A '/av':133C '27.0.0':89C '3.0.0':84C '3.1':123C,132C '3.2.21':85C '4.0.0':86C '4.5.5':87C '5.3':126C 'access':53B,98C,114C,120C 'affect':82C 'allow':93C 'attack':47B,95C,105C 'base':124C 'cannot':56B 'chang':57B 'compon':3A,33B,74C 'compromis':102C 'confidenti':63B,127C 'cve':11A,14A 'cvss':61B,122C,129C,131C 'data':10A,38B,121C 'easili':90C 'exploit':91C 'expos':34B 'fusion':21B,72C 'health':2A,32B,77C 'helidon':1A,17B,28B,31B,52B,68C,76C,103C,119C 'helidon-access':51B 'helidon-health':30B,75C 'host':26B 'http':41B,100C 'impact':64B,128C 'inform':54B 'java':18B 'l/i':139C 'l/pr':135C 'let':4A 'middlewar':22B,73C 'n':141C 'n/a':140C 'n/ac':134C 'n/s':137C 'n/ui':136C 'network':6A,45B,97C 'oracl':20B,27B,71C 'oracle-fusion-middlewar':19B 'per':59B 'product':69C 'read':8A,49B,113C 'request':42B 'result':110C 'runtim':23B 'score':125C 'self':25B 'self-host':24B 'subset':36B,117C 'success':104C 'support':78C 'u/c':138C 'unauthent':5A,40B,94C 'unauthor':112C 'user':7A 'vector':62B,130C 'version':79C 'via':99C 'vulner':65C,92C,108C","nicknames":[],"mitigations":[],"who_affected":"Applications built on affected Helidon releases that include the helidon-health component and serve its HTTP endpoints to the network. Systems that do not use Helidon, or that do not expose the health endpoints, are unlikely to be affected; the sources do not say which specific data is readable.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101568","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101568","severity":null,"published_at":"2026-10-20T22:18:08+00:00","modified_at":"2026-10-21T14:29:49+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","fetched_at":"2026-10-23T22:28:58+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"}