{"id":"CVE-2026-83398","kind":"vulnerability","aliases":["CVE-2026-83398"],"related":[],"title":"Oracle Data Integrator: unauthenticated HTTP flaw exposes data and allows changes","description":"Vulnerability in the Oracle Data Integrator product of Oracle Fusion Middleware (component: Data Transforms).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Data Integrator.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle Data Integrator accessible data as well as  unauthorized update, insert or delete access to some of Oracle Data Integrator accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).","summary":"Oracle Data Integrator's Data Transforms component has a flaw that lets an unauthenticated attacker over the network reach its data via HTTP. Successful attacks can read critical data and modify, insert or delete some of it.","severity":"high","cvss":8.2,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["java","oracle-data-integrator","oracle-fusion-middleware","self-hosted","vendor"],"not_affected_if":["unaffected-version"],"how_to_check":"- Check the installed Oracle Data Integrator version against `12.2.1.4.0` and `14.1.2.0.0`, the affected releases named in the advisory\n- Check whether the Data Transforms component is exposed over HTTP to untrusted networks: unknown","fix":"- Apply the Oracle Critical Patch Update fix for Oracle Data Integrator; the specific patch identifier is unknown from the sources\n- Restrict network access to the Oracle Data Integrator HTTP interface until patched","status":"open","published_at":"2026-10-20T22:19:56+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","triaged_at":"2026-10-25T03:04:05+00:00","updated_at":"2026-10-25T03:04:05+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:04:05Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for Oracle Data Integrator; the specific patch identifier is unknown from the sources\n- Restrict network access to the Oracle Data Integrator HTTP interface until patched","reach":"internet","title":"Oracle Data Integrator: unauthenticated HTTP flaw exposes data and allows changes","impact":"high","summary":"Oracle Data Integrator's Data Transforms component has a flaw that lets an unauthenticated attacker over the network reach its data via HTTP. Successful attacks can read critical data and modify, insert or delete some of it.","category":"vendor","nicknames":[],"who_cares":["oracle-data-integrator","oracle-fusion-middleware","java","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker reads critical data and modifies or deletes some records without login","analyst_note":"Confirm the Oracle CPU patch identifier and whether the Data Transforms HTTP endpoint is exposed by default; see the Oracle security alert for the affected release.","how_to_check":"- Check the installed Oracle Data Integrator version against `12.2.1.4.0` and `14.1.2.0.0`, the affected releases named in the advisory\n- Check whether the Data Transforms component is exposed over HTTP to untrusted networks: unknown","needs_analyst":true,"not_affected_if":["unaffected-version"],"who_is_affected":"Deployments of Oracle Data Integrator in the affected versions whose HTTP interface is reachable by an attacker, since the flaw needs no login. Teams not running Oracle Data Integrator, or running other versions, are not affected per the sources. Internal-only deployments are less exposed but the sources do not say how the flaw behaves behind a network boundary.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000682,"input_tokens":3515,"output_tokens":660,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-83398':14A,17A '/av':157C '12.2.1.4.0':85C '14.1.2.0.0':87C '3.1':145C,156C '8.2':148C 'access':96C,113C,119C,125C,135C,142C 'affect':83C 'allow':10A,91C 'attack':45B,55B,93C,105C 'base':146C 'chang':11A 'complet':118C 'compon':37B,76C 'compromis':100C 'confidenti':149C 'critic':58B,115C 'cve':12A,15A 'cvss':144C,153C,155C 'data':2A,8A,21B,32B,35B,51B,59B,69C,77C,102C,116C,123C,126C,140C,143C 'delet':64B,134C 'easili':88C 'exploit':89C 'expos':7A 'flaw':6A,40B 'fusion':25B,74C 'h/i':163C 'host':29B 'http':5A,53B,98C 'impact':152C 'insert':62B,132C 'integr':3A,22B,33B,70C,103C,124C,141C,151C 'java':18B 'l/a':164C 'l/pr':159C 'let':42B 'middlewar':26B,75C 'modifi':61B 'n':165C 'n/ac':158C 'n/s':161C 'n/ui':160C 'network':48B,95C 'oracl':1A,20B,24B,31B,68C,73C,101C,122C,139C 'oracle-data-integr':19B 'oracle-fusion-middlewar':23B 'product':71C 'reach':49B 'read':57B 'result':110C 'score':147C 'self':28B 'self-host':27B 'success':54B,104C 'support':79C 'transform':36B,78C 'u/c':162C 'unauthent':4A,44B,92C 'unauthor':112C,130C 'updat':131C 'vector':154C 'vendor':30B 'version':80C 'via':52B,97C 'vulner':65C,90C,108C 'well':128C","nicknames":[],"mitigations":[],"who_affected":"Deployments of Oracle Data Integrator in the affected versions whose HTTP interface is reachable by an attacker, since the flaw needs no login. Teams not running Oracle Data Integrator, or running other versions, are not affected per the sources. Internal-only deployments are less exposed but the sources do not say how the flaw behaves behind a network boundary.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:56+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-83398","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83398","severity":null,"published_at":"2026-10-20T22:19:56+00:00","modified_at":"2026-10-21T18:44:19+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","fetched_at":"2026-10-23T22:29:00+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"}