{"id":"CVE-2026-91392","kind":"vulnerability","aliases":["CVE-2026-91392"],"related":[],"title":"Oracle Siebel CRM End User: Open UI flaw allows limited data changes","description":"Vulnerability in the Siebel CRM End User product of Oracle Siebel CRM (component: Open UI).  Supported versions that are affected are 17.0-26.9. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM End User.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Siebel CRM End User accessible data. CVSS 3.1 Base Score 3.7 (Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).","summary":"Oracle Siebel CRM End User has a flaw in its Open UI component that an unauthenticated network attacker can reach over HTTP with difficulty. Successful exploitation can let the attacker update, insert or delete some data the End User application can access.","severity":"low","cvss":3.7,"epss":0.00187,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle","self-hosted","siebel-crm","vendor"],"not_affected_if":["unpatched-version-outside-range"],"how_to_check":"- Check the Siebel CRM End User version against the affected range 17.0-26.9 in the Oracle advisory\n- unknown for other checks, the sources do not say","fix":"- Apply the Oracle Critical Patch Update fix for Siebel CRM End User, version unknown from the sources","status":"open","published_at":"2026-10-20T22:20:42+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","triaged_at":"2026-10-25T04:43:42+00:00","updated_at":"2026-10-25T12:38:52+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-10-25T04:43:42Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for Siebel CRM End User, version unknown from the sources","reach":"network","title":"Oracle Siebel CRM End User: Open UI flaw allows limited data changes","impact":"medium","summary":"Oracle Siebel CRM End User has a flaw in its Open UI component that an unauthenticated network attacker can reach over HTTP with difficulty. Successful exploitation can let the attacker update, insert or delete some data the End User application can access.","category":"vendor","nicknames":[],"who_cares":["siebel-crm","oracle","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker alters or deletes some CRM data accessible to End User","analyst_note":"","how_to_check":"- Check the Siebel CRM End User version against the affected range 17.0-26.9 in the Oracle advisory\n- unknown for other checks, the sources do not say","needs_analyst":false,"not_affected_if":["unpatched-version-outside-range"],"who_is_affected":"Organizations running Oracle Siebel CRM End User in the affected version range 17.0-26.9 with the Open UI component exposed over HTTP. Self-hosted deployments are the ones that need to check; the sources do not say which configurations are exposed by default.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000591,"input_tokens":3451,"output_tokens":492,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-26.9':91C '-91392':15A,18A '/av':144C '17.0':90C '3.1':134C,143C '3.7':137C 'access':68B,101C,123C,131C 'affect':88C 'allow':9A,96C 'applic':66B 'attack':44B,56B,98C,111C 'base':135C 'chang':12A 'compon':39B,81C 'compromis':105C 'crm':3A,25B,29B,73C,80C,107C,128C 'cve':13A,16A 'cvss':133C,140C,142C 'data':11A,62B,132C 'delet':60B,122C 'difficult':92C 'difficulti':50B 'end':4A,30B,64B,74C,108C,129C 'exploit':52B,94C 'flaw':8A,34B 'h/pr':146C 'host':22B 'http':48B,103C 'impact':139C 'insert':58B,120C 'integr':138C 'l/a':151C 'let':54B 'limit':10A 'n':152C 'n/ac':145C 'n/i':150C 'n/s':148C 'n/ui':147C 'network':43B,100C 'open':6A,37B,82C 'oracl':1A,19B,27B,78C 'product':76C 'reach':46B 'result':116C 'score':136C 'self':21B 'self-host':20B 'siebel':2A,24B,28B,72C,79C,106C,127C 'siebel-crm':23B 'success':51B,110C 'support':84C 'u/c':149C 'ui':7A,38B,83C 'unauthent':42B,97C 'unauthor':118C 'updat':57B,119C 'user':5A,31B,65B,75C,109C,130C 'vector':141C 'vendor':26B 'version':85C 'via':102C 'vulner':69C,95C,114C","nicknames":[],"mitigations":[],"who_affected":"Organizations running Oracle Siebel CRM End User in the affected version range 17.0-26.9 with the Open UI component exposed over HTTP. Self-hosted deployments are the ones that need to check; the sources do not say which configurations are exposed by default.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:42+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91392","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91392","severity":null,"published_at":"2026-10-20T22:20:42+00:00","modified_at":"2026-10-21T18:45:11+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91392","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91392","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"}