{"id":"CVE-2026-101576","kind":"vulnerability","aliases":["CVE-2026-101576"],"related":[],"title":"Helidon: LRA component flaw allows limited unauthorized data reads over HTTP","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: LRA).  Supported versions that are affected are 4.0.0-4.5.5. Difficult to exploit 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 3.7 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).","summary":"Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Actions) component. An unauthenticated attacker on the network who can send HTTP requests can read a subset of data accessible to Helidon, though exploitation is difficult.","severity":"low","cvss":3.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["helidon","java","runtime","self-hosted"],"not_affected_if":["lra-not-used"],"how_to_check":"- Check the Helidon version in the project's pom.xml or build file, looking for versions from `4.0.0` to `4.5.5`\n- Confirm whether the LRA module (`helidon-lra` or equivalent) is on the classpath and exposed over HTTP","fix":"- Upgrade Helidon to a release newer than `4.5.5`, per the vendor advisory\n- unknown (the sources do not name the exact fixed version)","status":"open","published_at":"2026-10-20T22:18:10+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T04:43:58+00:00","updated_at":"2026-10-25T04:43:58+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-25T04:43:58Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Helidon to a release newer than `4.5.5`, per the vendor advisory\n- unknown (the sources do not name the exact fixed version)","reach":"network","title":"Helidon: LRA component flaw allows limited unauthorized data reads over HTTP","impact":"low","summary":"Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Actions) component. An unauthenticated attacker on the network who can send HTTP requests can read a subset of data accessible to Helidon, though exploitation is difficult.","category":"runtime","nicknames":[],"who_cares":["helidon","java","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated remote reads of a subset of Helidon-accessible data","analyst_note":"Confirm the exact fixed Helidon version and whether LRA endpoints are exposed by default, via the Oracle advisory for CVE-2026-101576.","how_to_check":"- Check the Helidon version in the project's pom.xml or build file, looking for versions from `4.0.0` to `4.5.5`\n- Confirm whether the LRA module (`helidon-lra` or equivalent) is on the classpath and exposed over HTTP","needs_analyst":true,"not_affected_if":["lra-not-used"],"who_is_affected":"Teams running Helidon 4.0.0 through 4.5.5 that expose LRA endpoints over HTTP to a network they do not fully trust. Applications that do not use the LRA component, or that do not serve it to untrusted clients, are less exposed. The sources do not describe the specific configuration required.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000649,"input_tokens":3433,"output_tokens":611,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-101576':14A,17A '-2026':13A,16A '/av':126C '3.1':116C,125C '3.7':119C '4.0.0':26B,80C '4.5.5':28B,81C 'access':56B,91C,107C,113C 'action':37B 'affect':78C 'allow':5A,86C 'attack':41B,88C,98C 'base':117C 'compon':3A,38B,72C 'compromis':95C 'confidenti':120C 'contain':29B 'cve':12A,15A 'cvss':115C,122C,124C 'data':8A,55B,114C 'difficult':62B,82C 'exploit':60B,84C 'flaw':4A,31B 'fusion':70C 'h/pr':128C 'helidon':1A,18B,24B,58B,66C,96C,112C 'host':23B 'http':11A,48B,93C 'impact':121C 'java':19B 'l/i':132C 'limit':6A 'long':35B 'lra':2A,34B,73C 'middlewar':71C 'n':134C 'n/a':133C 'n/ac':127C 'n/s':130C 'n/ui':129C 'network':44B,90C 'oracl':69C 'product':67C 'read':9A,51B,106C 'request':49B 'result':103C 'run':36B 'runtim':20B 'score':118C 'self':22B 'self-host':21B 'send':47B 'subset':53B,110C 'success':97C 'support':74C 'though':59B 'u/c':131C 'unauthent':40B,87C 'unauthor':7A,105C 'vector':123C 'version':25B,75C 'via':92C 'vulner':63C,85C,101C","nicknames":[],"mitigations":[],"who_affected":"Teams running Helidon 4.0.0 through 4.5.5 that expose LRA endpoints over HTTP to a network they do not fully trust. Applications that do not use the LRA component, or that do not serve it to untrusted clients, are less exposed. The sources do not describe the specific configuration required.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:10+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/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-2026-101576","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101576","severity":null,"published_at":"2026-10-20T22:18:10+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"}