{"id":"CVE-2026-91447","kind":"vulnerability","aliases":["CVE-2026-91447"],"related":[],"title":"Oracle Siebel CRM Deployment: unauthenticated HTTP flaw exposes critical data","description":"Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure).  Supported versions that are affected are 17.0-26.9. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Deployment.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Siebel CRM Deployment accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).","summary":"Oracle Siebel CRM Deployment's Server Infrastructure component has a flaw reachable over HTTP without credentials. A remote attacker can gain unauthorized access to critical data or all data the deployment can reach.","severity":"high","cvss":7.5,"epss":0.00377,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["enterprise-crm","oracle","self-hosted","siebel-crm","vendor"],"not_affected_if":["unsupported-version-outside-range"],"how_to_check":"- Check the installed Siebel CRM Deployment version against the affected range 17.0-26.9 in the Oracle advisory.\n- unknown for other checks; the sources do not name a file, setting or command.","fix":"- Apply the Oracle Critical Patch Update fix for Siebel CRM Deployment; the exact patched version is unknown in the sources.\n- Restrict HTTP access to Siebel server infrastructure endpoints until patched.","status":"open","published_at":"2026-10-20T22:20:48+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T03:18:21+00:00","updated_at":"2026-10-25T12:38:52+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:18:21Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for Siebel CRM Deployment; the exact patched version is unknown in the sources.\n- Restrict HTTP access to Siebel server infrastructure endpoints until patched.","reach":"internet","title":"Oracle Siebel CRM Deployment: unauthenticated HTTP flaw exposes critical data","impact":"medium","summary":"Oracle Siebel CRM Deployment's Server Infrastructure component has a flaw reachable over HTTP without credentials. A remote attacker can gain unauthorized access to critical data or all data the deployment can reach.","category":"vendor","nicknames":[],"who_cares":["siebel-crm","oracle","self-hosted","enterprise-crm"],"confidence":0.6,"needs_auth":"no","worst_case":"Unauthenticated attacker reads critical CRM data remotely over HTTP","analyst_note":"Confirm the patched version and any fix/workaround in Oracle's April 2026 Critical Patch Update advisory for Siebel CRM Deployment; sources only give the NVD entry.","how_to_check":"- Check the installed Siebel CRM Deployment version against the affected range 17.0-26.9 in the Oracle advisory.\n- unknown for other checks; the sources do not name a file, setting or command.","needs_analyst":true,"not_affected_if":["unsupported-version-outside-range"],"who_is_affected":"Organizations running Oracle Siebel CRM Deployment in the affected version range 17.0-26.9 with HTTP access to the Server Infrastructure component. The sources do not say whether a non-default configuration is required, so unknown systems outside that range can likely skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000659,"input_tokens":3468,"output_tokens":625,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-26.9':82C '-91447':13A,16A '/av':133C '17.0':81C '3.1':123C,132C '7.5':126C 'access':50B,91C,108C,114C,120C 'affect':79C 'allow':86C 'attack':46B,88C,100C 'base':124C 'complet':113C 'compon':35B,72C 'compromis':95C 'confidenti':127C 'credenti':43B 'critic':9A,52B,110C 'crm':3A,19B,26B,30B,65C,71C,97C,118C 'cve':11A,14A 'cvss':122C,129C,131C 'data':10A,53B,56B,111C,121C 'deploy':4A,31B,58B,66C,98C,119C 'easili':83C 'enterpris':18B 'enterprise-crm':17B 'exploit':84C 'expos':8A 'flaw':7A,38B 'gain':48B 'h/i':139C 'host':23B 'http':6A,41B,93C 'impact':128C 'infrastructur':34B,74C 'l/pr':135C 'n':141C 'n/a':140C 'n/ac':134C 'n/s':137C 'n/ui':136C 'network':90C 'oracl':1A,20B,28B,69C 'product':67C 'reach':60B 'reachabl':39B 'remot':45B 'result':105C 'score':125C 'self':22B 'self-host':21B 'server':33B,73C 'siebel':2A,25B,29B,64C,70C,96C,117C 'siebel-crm':24B 'success':99C 'support':75C 'u/c':138C 'unauthent':5A,87C 'unauthor':49B,107C 'vector':130C 'vendor':27B 'version':76C 'via':92C 'vulner':61C,85C,103C 'without':42B","nicknames":[],"mitigations":[],"who_affected":"Organizations running Oracle Siebel CRM Deployment in the affected version range 17.0-26.9 with HTTP access to the Server Infrastructure component. The sources do not say whether a non-default configuration is required, so unknown systems outside that range can likely skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:48+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91447","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91447","severity":null,"published_at":"2026-10-20T22:20:48+00:00","modified_at":"2026-10-21T18:44:55+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91447","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91447","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:52+00:00","fetched_at":"2026-10-25T12:38:52+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"}