{"id":"CVE-2026-91448","kind":"vulnerability","aliases":["CVE-2026-91448"],"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 that lets an unauthenticated attacker reach it over HTTP from the network. A successful attack gives unauthorized access to critical data or all data the deployment can reach.","severity":"high","cvss":7.5,"epss":0.00398,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["enterprise-crm","oracle","self-hosted","siebel-crm","vendor"],"not_affected_if":["no-network-http-exposure","unsupported-version"],"how_to_check":"- Identify Siebel CRM Deployment versions in use and compare against the affected range `17.0` to `26.9`\n- Check the Oracle Critical Patch Update advisory for the Siebel CRM release you run","fix":"- Apply the Oracle Siebel CRM patch for your release, as listed in the Oracle security advisory (version unknown from sources)\n- Restrict HTTP access to Siebel server infrastructure 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 Siebel CRM patch for your release, as listed in the Oracle security advisory (version unknown from sources)\n- Restrict HTTP access to Siebel server infrastructure until patched","reach":"internet","title":"Oracle Siebel CRM Deployment: unauthenticated HTTP flaw exposes critical data","impact":"high","summary":"Oracle Siebel CRM Deployment's Server Infrastructure component has a flaw that lets an unauthenticated attacker reach it over HTTP from the network. A successful attack gives 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 and all accessible CRM data","analyst_note":"Check the Oracle Critical Patch Update advisory for the patched Siebel CRM versions and which deployment configurations are exposed.","how_to_check":"- Identify Siebel CRM Deployment versions in use and compare against the affected range `17.0` to `26.9`\n- Check the Oracle Critical Patch Update advisory for the Siebel CRM release you run","needs_analyst":true,"not_affected_if":["unsupported-version","no-network-http-exposure"],"who_is_affected":"Organizations running Oracle Siebel CRM Deployment in the affected version range 17.0 to 26.9 with HTTP reachable from the network. Teams on unaffected releases or with Siebel reachable only from a restricted internal network have lower exposure. The sources do not say which specific configurations are required.","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':88C '-91448':13A,16A '/av':139C '17.0':87C '3.1':129C,138C '7.5':132C 'access':56B,97C,114C,120C,126C 'affect':85C 'allow':92C 'attack':43B,53B,94C,106C 'base':130C 'complet':119C 'compon':35B,78C 'compromis':101C 'confidenti':133C 'critic':9A,58B,116C 'crm':3A,19B,26B,30B,71C,77C,103C,124C 'cve':11A,14A 'cvss':128C,135C,137C 'data':10A,59B,62B,117C,127C 'deploy':4A,31B,64B,72C,104C,125C 'easili':89C 'enterpris':18B 'enterprise-crm':17B 'exploit':90C 'expos':8A 'flaw':7A,38B 'give':54B 'h/i':145C 'host':23B 'http':6A,47B,99C 'impact':134C 'infrastructur':34B,80C 'l/pr':141C 'let':40B 'n':147C 'n/a':146C 'n/ac':140C 'n/s':143C 'n/ui':142C 'network':50B,96C 'oracl':1A,20B,28B,75C 'product':73C 'reach':44B,66B 'result':111C 'score':131C 'self':22B 'self-host':21B 'server':33B,79C 'siebel':2A,25B,29B,70C,76C,102C,123C 'siebel-crm':24B 'success':52B,105C 'support':81C 'u/c':144C 'unauthent':5A,42B,93C 'unauthor':55B,113C 'vector':136C 'vendor':27B 'version':82C 'via':98C 'vulner':67C,91C,109C","nicknames":[],"mitigations":[],"who_affected":"Organizations running Oracle Siebel CRM Deployment in the affected version range 17.0 to 26.9 with HTTP reachable from the network. Teams on unaffected releases or with Siebel reachable only from a restricted internal network have lower exposure. The sources do not say which specific configurations are required.","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-2026-91448","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91448","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-2026-91448","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91448","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"}