{"id":"CVE-2026-101508","kind":"vulnerability","aliases":["CVE-2026-101508"],"related":[],"title":"Oracle Siebel CRM Integration: unauthenticated HTTP request can crash the EAI service","description":"Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: EAI).  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 Integration.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Siebel CRM Integration. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).","summary":"Oracle Siebel CRM Integration (EAI component) versions 17.0 through 26.9 can be hung or repeatedly crashed by an unauthenticated attacker sending HTTP requests over the network. The impact is denial of service only; the CVSS vector shows no confidentiality or integrity loss.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["crm","enterprise-integration","http","oracle-siebel","vendor"],"not_affected_if":["eai-not-deployed","endpoints-not-network-reachable","versions-outside-17.0-26.9"],"how_to_check":"- Check whether the Siebel CRM Integration (EAI) component is deployed and reachable over HTTP, and note the running release version\n- Compare the installed version against the affected range 17.0 to 26.9 in Oracle's advisory","fix":"- Apply the Oracle Siebel CRM security patch for the affected release (patch identifier unknown from sources)\n- Until patched, restrict network access to the EAI HTTP endpoints to trusted hosts","status":"open","published_at":"2026-10-20T22:18:00+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T03:20:33+00:00","updated_at":"2026-10-25T03:20:33+00:00","category":"vendor","confidence":0.8,"triage":{"at":"2026-10-25T03:20:33Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Siebel CRM security patch for the affected release (patch identifier unknown from sources)\n- Until patched, restrict network access to the EAI HTTP endpoints to trusted hosts","reach":"internet","title":"Oracle Siebel CRM Integration: unauthenticated HTTP request can crash the EAI service","impact":"medium","summary":"Oracle Siebel CRM Integration (EAI component) versions 17.0 through 26.9 can be hung or repeatedly crashed by an unauthenticated attacker sending HTTP requests over the network. The impact is denial of service only; the CVSS vector shows no confidentiality or integrity loss.","category":"vendor","nicknames":[],"who_cares":["oracle-siebel","crm","enterprise-integration","http"],"confidence":0.8,"needs_auth":"no","worst_case":"Siebel EAI service hangs or repeatedly crashes, causing full denial of service","analyst_note":"Check Oracle's Critical Patch Update advisory for the patch identifier and exact affected builds, since the sources give only the version range.","how_to_check":"- Check whether the Siebel CRM Integration (EAI) component is deployed and reachable over HTTP, and note the running release version\n- Compare the installed version against the affected range 17.0 to 26.9 in Oracle's advisory","needs_analyst":true,"not_affected_if":["versions-outside-17.0-26.9","eai-not-deployed","endpoints-not-network-reachable"],"who_is_affected":"Organisations running Oracle Siebel CRM Integration in the 17.0 to 26.9 range that expose the EAI component over HTTP to a network the attacker can reach. Deployments where the EAI endpoints are reachable only from tightly controlled internal hosts face lower exposure. The sources do not say which default configurations expose the endpoint.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000687,"input_tokens":3461,"output_tokens":682,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-101508':15A,18A '-2026':14A,17A '-26.9':90C '/av':142C '17.0':35B,89C '26.9':37B '3.1':132C,141C '7.5':135C 'abil':116C 'access':99C 'affect':87C 'allow':94C 'attack':47B,96C,108C 'avail':136C 'base':133C 'caus':118C 'complet':125C 'compon':33B,81C 'compromis':103C 'confidenti':66B 'crash':9A,43B,124C 'crm':3A,19B,30B,74C,80C,105C,129C 'cve':13A,16A 'cvss':62B,131C,138C,140C 'denial':57B 'dos':126C 'eai':11A,32B,82C 'easili':91C 'enterpris':21B 'enterprise-integr':20B 'exploit':92C 'frequent':122C 'h':150C 'hang':120C 'http':6A,23B,49B,101C 'hung':40B 'impact':55B,137C 'integr':4A,22B,31B,68B,75C,106C,130C 'l/pr':144C 'loss':69B 'n/a':149C 'n/ac':143C 'n/i':148C 'n/s':146C 'n/ui':145C 'network':53B,98C 'oracl':1A,25B,28B,78C 'oracle-siebel':24B 'product':76C 'repeat':42B,123C 'request':7A,50B 'result':113C 'score':134C 'send':48B 'servic':12A,59B 'show':64B 'siebel':2A,26B,29B,73C,79C,104C,128C 'success':107C 'support':83C 'u/c':147C 'unauthent':5A,46B,95C 'unauthor':115C 'vector':63B,139C 'vendor':27B 'version':34B,84C 'via':100C 'vulner':70C,93C,111C","nicknames":[],"mitigations":[],"who_affected":"Organisations running Oracle Siebel CRM Integration in the 17.0 to 26.9 range that expose the EAI component over HTTP to a network the attacker can reach. Deployments where the EAI endpoints are reachable only from tightly controlled internal hosts face lower exposure. The sources do not say which default configurations expose the endpoint.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:00+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101508","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101508","severity":null,"published_at":"2026-10-20T22:18:00+00:00","modified_at":"2026-10-22T19:17:33+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"}