{"id":"CVE-2026-101566","kind":"vulnerability","aliases":["CVE-2026-101566"],"related":[],"title":"Oracle E-Business Suite: Application Object Library flaw lets local users take over","description":"Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: DB Privileges).  Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Application Object Library executes to compromise Oracle Application Object Library.  Successful attacks of this vulnerability can result in takeover of Oracle Application Object Library. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).","summary":"Oracle Application Object Library, part of Oracle E-Business Suite, has a flaw in its database privileges component. A low-privileged user who can log on to the host running it can take over the product, with full read, write and availability impact.","severity":"high","cvss":7.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["application-object-library","database","oracle-ebs","package","self-hosted"],"not_affected_if":["no-low-privilege-logon"],"how_to_check":"- Confirm the Oracle E-Business Suite release level in use; the sources say versions 12.2.3 through 12.2.15 are affected\n- Check whether any application or database accounts with low privileges can log on to the EBS application tier host\n- Review the Oracle Critical Patch Update advisory for the patch that covers this CVE (unknown from the sources)","fix":"- Apply the Oracle Critical Patch Update fix for Oracle Application Object Library in EBS 12.2.x (exact patch name unknown from the sources)\n- Restrict logon access to EBS application tier hosts to administrators until patched","status":"open","published_at":"2026-10-20T22:18:08+00:00","first_seen_at":"2026-10-23T21:57:22+00:00","triaged_at":"2026-10-25T03:09:59+00:00","updated_at":"2026-10-25T03:09:59+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:09:59Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for Oracle Application Object Library in EBS 12.2.x (exact patch name unknown from the sources)\n- Restrict logon access to EBS application tier hosts to administrators until patched","reach":"local","title":"Oracle E-Business Suite: Application Object Library flaw lets local users take over","impact":"high","summary":"Oracle Application Object Library, part of Oracle E-Business Suite, has a flaw in its database privileges component. A low-privileged user who can log on to the host running it can take over the product, with full read, write and availability impact.","category":"package","nicknames":[],"who_cares":["oracle-ebs","application-object-library","database","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"low-privileged local user takes over the Object Library product","analyst_note":"Find the Oracle Critical Patch Update advisory and patch name for CVE-2026-101566 and confirm the affected release list; the NVD entry alone gives no fix or check.","how_to_check":"- Confirm the Oracle E-Business Suite release level in use; the sources say versions 12.2.3 through 12.2.15 are affected\n- Check whether any application or database accounts with low privileges can log on to the EBS application tier host\n- Review the Oracle Critical Patch Update advisory for the patch that covers this CVE (unknown from the sources)","needs_analyst":true,"not_affected_if":["no-low-privilege-logon"],"who_is_affected":"Teams running Oracle E-Business Suite 12.2.3 through 12.2.15 where low-privileged users or accounts can log on to the infrastructure hosting Application Object Library. Systems on later EBS releases or without local logon access for low-privileged users are less exposed, though the sources do not state this explicitly.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000679,"input_tokens":3469,"output_tokens":664,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-101566':16A,19A '-2026':15A,18A '/av':154C '12.2.15':101C '12.2.3':100C '3.1':141C,153C '7.8':144C 'affect':98C 'allow':105C 'applic':6A,21B,33B,81C,116C,123C,137C 'application-object-librari':20B 'attack':108C,127C 'avail':75B,148C 'base':142C 'busi':4A,41B,89C 'compon':50B,91C 'compromis':121C 'confidenti':145C 'cve':14A,17A 'cvss':140C,150C,152C 'databas':24B,48B 'db':92C 'e':3A,40B,88C 'e-busi':2A,39B,87C 'easili':102C 'eb':27B 'execut':119C 'exploit':103C 'flaw':9A,45B 'full':71B 'h':162C 'h/a':161C 'h/i':160C 'host':31B,62B 'impact':76B,149C 'infrastructur':113C 'integr':146C 'l/ac':155C 'l/pr':156C 'l/ui':157C 'let':10A 'librari':8A,23B,35B,83C,118C,125C,139C 'local':11A 'log':58B 'logon':110C 'low':53B,106C 'low-privileg':52B 'n/s':158C 'object':7A,22B,34B,82C,117C,124C,138C 'oracl':1A,26B,32B,38B,80C,86C,115C,122C,136C 'oracle-eb':25B 'packag':28B 'part':36B 'privileg':49B,54B,93C,107C 'product':69B,84C 'read':72B 'result':132C 'run':63B 'score':143C 'self':30B 'self-host':29B 'success':126C 'suit':5A,42B,90C 'support':94C 'take':13A,66B 'takeov':134C 'u/c':159C 'user':12A,55B 'vector':151C 'version':95C 'vulner':77C,104C,130C 'write':73B","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle E-Business Suite 12.2.3 through 12.2.15 where low-privileged users or accounts can log on to the infrastructure hosting Application Object Library. Systems on later EBS releases or without local logon access for low-privileged users are less exposed, though the sources do not state this explicitly.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:18:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101566","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101566","severity":null,"published_at":"2026-10-20T22:18:08+00:00","modified_at":"2026-10-21T14:29:49+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"}