{"id":"CVE-2026-91347","kind":"vulnerability","aliases":["CVE-2026-91347"],"related":[],"title":"Oracle E-Business Suite iSupport: low-privileged HTTP attacker can modify data","description":"Vulnerability in the iSupport product of Oracle E-Business Suite (component: Service Requests).  Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise iSupport.  While the vulnerability is in iSupport, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all iSupport accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of iSupport. CVSS 3.1 Base Score 8.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L).","summary":"Oracle E-Business Suite's iSupport module, under Service Requests, lets a low-privileged user with network access over HTTP create, delete or modify critical data and cause partial denial of service. The flaw has a scope change, so it can also affect other products connected to iSupport.","severity":"high","cvss":8.5,"epss":0.00354,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["erp","isupport","oracle-ebs","other","service-requests"],"not_affected_if":["module-not-installed"],"how_to_check":"- Check the installed iSupport patch level for Oracle E-Business Suite 12.2.3 through 12.2.15 in the Oracle E-Business Suite patch history\n- unknown for other checks, the sources do not say","fix":"- Apply the Oracle Critical Patch Update fix for iSupport in Oracle E-Business Suite 12.2.3-12.2.15, as listed in Oracle's advisory\n- unknown for a specific patch number, the sources do not say","status":"open","published_at":"2026-10-20T22:20:37+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","triaged_at":"2026-10-25T03:00:25+00:00","updated_at":"2026-10-25T12:38:52+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-25T03:00:25Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for iSupport in Oracle E-Business Suite 12.2.3-12.2.15, as listed in Oracle's advisory\n- unknown for a specific patch number, the sources do not say","reach":"network","title":"Oracle E-Business Suite iSupport: low-privileged HTTP attacker can modify data","impact":"high","summary":"Oracle E-Business Suite's iSupport module, under Service Requests, lets a low-privileged user with network access over HTTP create, delete or modify critical data and cause partial denial of service. The flaw has a scope change, so it can also affect other products connected to iSupport.","category":"other","nicknames":[],"who_cares":["oracle-ebs","isupport","service-requests","erp"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker modifies or deletes critical iSupport data and partially disrupts service","analyst_note":"Find Oracle's Critical Patch Update advisory for this CVE to get the exact patch and whether iSupport is internet-facing by default.","how_to_check":"- Check the installed iSupport patch level for Oracle E-Business Suite 12.2.3 through 12.2.15 in the Oracle E-Business Suite patch history\n- unknown for other checks, the sources do not say","needs_analyst":true,"not_affected_if":["module-not-installed"],"who_is_affected":"Organizations running Oracle E-Business Suite release 12.2.3 through 12.2.15 with the iSupport module and Service Requests in use. The sources do not say whether iSupport exposed over the internet is required, so teams without the module can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000656,"input_tokens":3505,"output_tokens":610,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':16A,19A '-91347':17A,20A '/av':180C '12.2.15':101C '12.2.3':100C '3.1':168C,179C '8.5':171C 'abil':155C 'access':49B,111C,144C,151C 'addit':127C 'affect':74B,98C 'allow':105C 'also':73B 'attack':11A,108C,123C,132C 'avail':174C 'base':169C 'busi':4A,33B,89C 'c/c':185C 'caus':59B,157C 'chang':69B,130C 'compon':91C 'compromis':115C 'connect':77B 'creat':52B 'creation':140C 'critic':56B,146C 'cve':15A,18A 'cvss':167C,176C,178C 'data':14A,57B,147C,152C 'delet':53B,141C 'denial':61B,160C 'dos':164C 'e':3A,32B,88C 'e-busi':2A,31B,87C 'easili':102C 'eb':25B 'erp':21B 'exploit':103C 'flaw':65B 'h/a':187C 'http':10A,51B,113C 'impact':126C,175C 'integr':172C 'isupport':6A,22B,36B,79B,83C,116C,122C,150C,166C 'l':188C 'l/pr':182C 'l/ui':183C 'let':41B 'low':8A,44B,106C 'low-privileg':7A,43B 'may':124C 'modif':143C 'modifi':13A,55B 'modul':37B 'n/ac':181C 'n/i':186C 'n/s':184C 'network':48B,110C 'oracl':1A,24B,30B,86C 'oracle-eb':23B 'partial':60B,159C,163C 'privileg':9A,45B,107C 'product':76B,84C,128C 'request':29B,40B,93C 'result':137C 'scope':68B,129C 'score':170C 'servic':28B,39B,63B,92C,162C 'service-request':27B 'signific':125C 'success':131C 'suit':5A,34B,90C 'support':94C 'unauthor':139C,154C 'user':46B 'vector':177C 'version':95C 'via':112C 'vulner':80C,104C,119C,135C","nicknames":[],"mitigations":[],"who_affected":"Organizations running Oracle E-Business Suite release 12.2.3 through 12.2.15 with the iSupport module and Service Requests in use. The sources do not say whether iSupport exposed over the internet is required, so teams without the module can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:37+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91347","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91347","severity":null,"published_at":"2026-10-20T22:20:37+00:00","modified_at":"2026-10-21T18:44:40+00:00","first_seen_at":"2026-10-23T21:57:26+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91347","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91347","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"}