{"id":"CVE-2026-101520","kind":"vulnerability","aliases":["CVE-2026-101520"],"related":[],"title":"Oracle OUI Framework: unauthenticated HTTP request can crash installer service","description":"Vulnerability in the Oracle Global Lifecycle Management NextGen OUI Framework product of Oracle Fusion Middleware (component: NextGen Installer).  Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 14.1.2.1.0 and  15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Global Lifecycle Management NextGen OUI Framework.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Global Lifecycle Management NextGen OUI Framework. 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":"The Oracle Global Lifecycle Management NextGen OUI Framework installer, part of Oracle Fusion Middleware, has a flaw reachable over HTTP without credentials. An attacker can hang or repeatedly crash the component, causing denial of service with no confidentiality or integrity loss.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["fusion-middleware","oracle","oracle-lifecycle-management","vendor"],"not_affected_if":["installer-not-deployed","network-restricted"],"how_to_check":"- unknown","fix":"- Apply the Oracle Critical Patch Update fix for the NextGen OUI Framework on affected releases 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 14.1.2.1.0 and 15.1.1.0.0\n- Restrict network access to the installer endpoint until patched","status":"open","published_at":"2026-10-20T22:18:01+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T03:20:29+00:00","updated_at":"2026-10-25T03:20:29+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:20:29Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for the NextGen OUI Framework on affected releases 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 14.1.2.1.0 and 15.1.1.0.0\n- Restrict network access to the installer endpoint until patched","reach":"internet","title":"Oracle OUI Framework: unauthenticated HTTP request can crash installer service","impact":"low","summary":"The Oracle Global Lifecycle Management NextGen OUI Framework installer, part of Oracle Fusion Middleware, has a flaw reachable over HTTP without credentials. An attacker can hang or repeatedly crash the component, causing denial of service with no confidentiality or integrity loss.","category":"vendor","nicknames":[],"who_cares":["oracle","fusion-middleware","oracle-lifecycle-management"],"confidence":0.6,"needs_auth":"no","worst_case":"Service hangs or crashes repeatedly, causing denial of service","analyst_note":"Check Oracle's CPU advisory for the patch version and any HTTP endpoint details; the NVD entry gives no fixed version or detection steps.","how_to_check":"- unknown","needs_analyst":true,"not_affected_if":["installer-not-deployed","network-restricted"],"who_is_affected":"Teams running Oracle Fusion Middleware with the Global Lifecycle Management NextGen OUI Framework installer on the listed release lines, where the installer is reachable over HTTP. Systems where the installer is not deployed or is kept off the network are not exposed in the same way. Exact deployment exposure beyond the listed versions is unknown.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000667,"input_tokens":3564,"output_tokens":622,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-101520':13A,16A '-2026':12A,15A '/av':156C '12.2.1.4.0':91C '14.1.1.0.0':92C '14.1.2.0.0':93C '14.1.2.1.0':94C '15.1.1.0.0':96C '3.1':146C,155C '7.5':149C 'abil':126C 'access':105C 'affect':89C 'allow':100C 'attack':49B,102C,118C 'avail':150C 'base':147C 'caus':57B,128C 'complet':135C 'compon':56B,82C 'compromis':109C 'confidenti':63B 'crash':8A,54B,134C 'credenti':47B 'cve':11A,14A 'cvss':145C,152C,154C 'denial':58B 'dos':136C 'easili':97C 'exploit':98C 'flaw':42B 'framework':3A,33B,76C,116C,144C 'frequent':132C 'fusion':18B,38B,80C 'fusion-middlewar':17B 'global':28B,71C,111C,139C 'h':164C 'hang':51B,130C 'http':5A,45B,107C 'impact':151C 'instal':9A,34B,84C 'integr':65B 'l/pr':158C 'lifecycl':23B,29B,72C,112C,140C 'loss':66B 'manag':24B,30B,73C,113C,141C 'middlewar':19B,39B,81C 'n/a':163C 'n/ac':157C 'n/i':162C 'n/s':160C 'n/ui':159C 'network':104C 'nextgen':31B,74C,83C,114C,142C 'oracl':1A,20B,22B,27B,37B,70C,79C,110C,138C 'oracle-lifecycle-manag':21B 'oui':2A,32B,75C,115C,143C 'part':35B 'product':77C 'reachabl':43B 'repeat':53B,133C 'request':6A 'result':123C 'score':148C 'servic':10A,60B 'success':117C 'support':85C 'u/c':161C 'unauthent':4A,101C 'unauthor':125C 'vector':153C 'vendor':25B 'version':86C 'via':106C 'vulner':67C,99C,121C 'without':46B","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle Fusion Middleware with the Global Lifecycle Management NextGen OUI Framework installer on the listed release lines, where the installer is reachable over HTTP. Systems where the installer is not deployed or is kept off the network are not exposed in the same way. Exact deployment exposure beyond the listed versions is unknown.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:01+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-2026-101520","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101520","severity":null,"published_at":"2026-10-20T22:18:01+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"}