{"id":"CVE-2026-91557","kind":"vulnerability","aliases":["CVE-2026-91557"],"related":[],"title":"Oracle Business Intelligence Enterprise Edition: local low-privilege takeover via BI Foundation","description":"Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: BI Foundation).   The supported version that is affected is 12.2.1.4.0. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Business Intelligence Enterprise Edition executes to compromise Oracle Business Intelligence Enterprise Edition.  Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).","summary":"Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 has a flaw in its BI Foundation component. A low-privileged user with logon to the host running the product can take over the Oracle Business Intelligence Enterprise Edition instance.","severity":"high","cvss":7.0,"epss":0.001,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle-analytics","oracle-bi","other","self-hosted"],"not_affected_if":["default-config","no-local-logon"],"how_to_check":"- Confirm the deployed version of Oracle Business Intelligence Enterprise Edition is `12.2.1.4.0` (unknown from the sources how to read it on the host)\n- Check whether low-privileged accounts have logon access to the server running Oracle Business Intelligence Enterprise Edition","fix":"- unknown (the sources do not name a patched version or Oracle Critical Patch Update; check Oracle's security alert for this CVE)","status":"open","published_at":"2026-10-20T22:20:58+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T03:38:08+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-25T03:38:08Z","model":"claude-haiku-5-5","output":{"fix":"- unknown (the sources do not name a patched version or Oracle Critical Patch Update; check Oracle's security alert for this CVE)","reach":"local","title":"Oracle Business Intelligence Enterprise Edition: local low-privilege takeover via BI Foundation","impact":"high","summary":"Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 has a flaw in its BI Foundation component. A low-privileged user with logon to the host running the product can take over the Oracle Business Intelligence Enterprise Edition instance.","category":"other","nicknames":[],"who_cares":["oracle-bi","oracle-analytics","self-hosted"],"confidence":0.7,"needs_auth":"yes","worst_case":"low-privileged local user takes over the BI instance","analyst_note":"Find Oracle's patch or Critical Patch Update for CVE-2026-91557 and the fixed BI Foundation version; the sources give no fix or detection steps.","how_to_check":"- Confirm the deployed version of Oracle Business Intelligence Enterprise Edition is `12.2.1.4.0` (unknown from the sources how to read it on the host)\n- Check whether low-privileged accounts have logon access to the server running Oracle Business Intelligence Enterprise Edition","needs_analyst":true,"not_affected_if":["default-config","no-local-logon"],"who_is_affected":"Teams running Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 where non-administrative users can log on to the host. The sources describe a local attack, so exposure depends on who has logon access to the machine. Teams not running this version can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000657,"input_tokens":3502,"output_tokens":614,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':15A,18A '-91557':16A,19A '/av':146C '12.2.1.4.0':35B,89C '3.1':133C,145C '7.0':136C 'affect':87C 'allow':94C 'analyt':22B,78C 'attack':97C,118C 'avail':140C 'base':134C 'bi':12A,25B,41B,80C 'busi':2A,31B,62B,71C,105C,113C,128C 'compon':43B,79C 'compromis':111C 'confidenti':137C 'cve':14A,17A 'cvss':132C,142C,144C 'difficult':90C 'edit':5A,34B,65B,74C,108C,116C,131C 'enterpris':4A,33B,64B,73C,107C,115C,130C 'execut':109C 'exploit':92C 'flaw':38B 'foundat':13A,42B,81C 'h':154C 'h/a':153C 'h/i':152C 'h/pr':148C 'host':29B,53B 'impact':141C 'infrastructur':102C 'instanc':66B 'integr':138C 'intellig':3A,32B,63B,72C,106C,114C,129C 'l/ac':147C 'l/ui':149C 'local':6A 'logon':50B,99C 'low':8A,46B,95C 'low-privileg':7A,45B 'n/s':150C 'oracl':1A,21B,24B,30B,61B,70C,77C,104C,112C,127C 'oracle-analyt':20B 'oracle-bi':23B 'privileg':9A,47B,96C 'product':56B,75C 'result':123C 'run':54B 'score':135C 'self':28B 'self-host':27B 'success':117C 'support':83C 'take':58B 'takeov':10A,125C 'u/c':151C 'user':48B 'vector':143C 'version':84C 'via':11A 'vulner':67C,93C,121C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 where non-administrative users can log on to the host. The sources describe a local attack, so exposure depends on who has logon access to the machine. Teams not running this version can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:58+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/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-2026-91557","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91557","severity":null,"published_at":"2026-10-20T22:20:58+00:00","modified_at":"2026-10-21T18:44:55+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91557","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91557","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:51+00:00","fetched_at":"2026-10-25T12:38:51+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"}