{"id":"CVE-2026-101575","kind":"vulnerability","aliases":["CVE-2026-101575"],"related":[],"title":"Helidon: LRA component flaw lets unauthenticated remote attackers modify data","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.  While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Helidon accessible data as well as  unauthorized read access to a subset of Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 6.5 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L).","summary":"Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Action) component that can be reached over HTTP. An unauthenticated attacker with network access can read, change or delete some data handled by Helidon and partially disrupt the service.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["helidon","java","runtime","self-hosted"],"not_affected_if":["default-config"],"how_to_check":"- Check the Helidon version in the project build file (for example `pom.xml` or `build.gradle`) and look for `helidon` versions between `4.0.0` and `4.5.5`\n- Check whether the application uses the Helidon LRA component (`helidon-lra` or LRA annotations)","fix":"- Upgrade Helidon to a release later than `4.5.5` (the sources do not name the exact fixed version; check the Oracle advisory)","status":"open","published_at":"2026-10-20T22:18:10+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T03:55:14+00:00","updated_at":"2026-10-25T03:55:14+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-10-25T03:55:14Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Helidon to a release later than `4.5.5` (the sources do not name the exact fixed version; check the Oracle advisory)","reach":"internet","title":"Helidon: LRA component flaw lets unauthenticated remote attackers modify data","impact":"medium","summary":"Helidon versions 4.0.0 through 4.5.5 contain a flaw in the LRA (Long Running Action) component that can be reached over HTTP. An unauthenticated attacker with network access can read, change or delete some data handled by Helidon and partially disrupt the service.","category":"runtime","nicknames":[],"who_cares":["helidon","java","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker modifies or deletes some Helidon-held data and causes partial denial of service","analyst_note":"Confirm the fixed Helidon version and whether the flaw requires the LRA component to be enabled, using the Oracle security alert for CVE-2026-101575.","how_to_check":"- Check the Helidon version in the project build file (for example `pom.xml` or `build.gradle`) and look for `helidon` versions between `4.0.0` and `4.5.5`\n- Check whether the application uses the Helidon LRA component (`helidon-lra` or LRA annotations)","needs_analyst":true,"not_affected_if":["default-config"],"who_is_affected":"Applications built on Helidon 4.0.0 through 4.5.5 that expose HTTP endpoints and use the LRA component are the ones at risk. The sources do not say whether applications without LRA are exposed, so unknown for those; teams on other Helidon features or other versions can likely skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000661,"input_tokens":3533,"output_tokens":615,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-101575':13A,16A '-2026':12A,15A '/av':174C '3.1':161C,173C '4.0.0':25B,82C '4.5.5':27B,83C '6.5':164C 'abil':148C 'access':49B,93C,126C,131C,138C,144C 'action':36B 'addit':109C 'affect':80C 'allow':88C 'attack':8A,46B,90C,105C,114C 'avail':168C 'base':162C 'c/c':179C 'caus':150C 'chang':52B,112C 'compon':3A,37B,74C 'compromis':97C 'confidenti':165C 'contain':28B 'cve':11A,14A 'cvss':160C,170C,172C 'data':10A,56B,132C,145C 'delet':54B,125C 'denial':153C 'difficult':84C 'disrupt':62B 'dos':157C 'exploit':86C 'flaw':4A,30B 'fusion':72C 'h/pr':176C 'handl':57B 'helidon':1A,17B,23B,59B,68C,98C,104C,130C,143C,159C 'host':22B 'http':43B,95C 'impact':108C,169C 'insert':123C 'integr':166C 'java':18B 'l':182C 'l/a':181C 'l/i':180C 'let':5A 'long':34B 'lra':2A,33B,75C 'may':106C 'middlewar':73C 'modifi':9A 'n/ac':175C 'n/s':178C 'n/ui':177C 'network':48B,92C 'oracl':71C 'partial':61B,152C,156C 'product':69C,110C 'reach':41B 'read':51B,137C 'remot':7A 'result':119C 'run':35B 'runtim':19B 'scope':111C 'score':163C 'self':21B 'self-host':20B 'servic':64B,155C 'signific':107C 'subset':141C 'success':113C 'support':76C 'unauthent':6A,45B,89C 'unauthor':121C,136C,147C 'updat':122C 'vector':171C 'version':24B,77C 'via':94C 'vulner':65C,87C,101C,117C 'well':134C","nicknames":[],"mitigations":[],"who_affected":"Applications built on Helidon 4.0.0 through 4.5.5 that expose HTTP endpoints and use the LRA component are the ones at risk. The sources do not say whether applications without LRA are exposed, so unknown for those; teams on other Helidon features or other versions can likely skip it.","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:C/C:L/I:L/A:L","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101575","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101575","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"}