{"id":"CVE-2026-91536","kind":"vulnerability","aliases":["CVE-2026-91536"],"related":[],"title":"Oracle SOA Suite Fabric Layer flaw lets low-privilege users change data","description":"Vulnerability in the Oracle SOA Suite product of Oracle Fusion Middleware (component: Fabric Layer).  Supported versions that are affected are 12.2.1.4.0 and  14.1.2.0.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle SOA Suite.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Oracle SOA Suite accessible data as well as  unauthorized read access to a subset of Oracle SOA Suite accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle SOA Suite. CVSS 3.1 Base Score 5.0 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L).","summary":"A flaw in the Fabric Layer of Oracle SOA Suite 12.2.1.4.0 and 14.1.2.0.0 lets a low-privilege user reach the product over HTTPS. A successful attack can read, change or delete some accessible data and cause a partial denial of service.","severity":"medium","cvss":5.0,"epss":0.00214,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle-fusion-middleware","oracle-soa-suite","self-hosted","vendor"],"not_affected_if":["unknown"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-20T22:20:57+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T04:30:39+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T04:30:39Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Oracle SOA Suite Fabric Layer flaw lets low-privilege users change data","impact":"medium","summary":"A flaw in the Fabric Layer of Oracle SOA Suite 12.2.1.4.0 and 14.1.2.0.0 lets a low-privilege user reach the product over HTTPS. A successful attack can read, change or delete some accessible data and cause a partial denial of service.","category":"vendor","nicknames":[],"who_cares":["oracle-soa-suite","oracle-fusion-middleware","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"Partial read, change and delete of some SOA data, plus partial denial of service","analyst_note":"Check Oracle's Critical Patch Update advisory for the patched versions and the affected-configuration details, since the sources give no fix or check.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Teams running Oracle SOA Suite 12.2.1.4.0 or 14.1.2.0.0 with network access to its HTTPS endpoints are in scope. The sources do not say which configurations expose the Fabric Layer, so teams should confirm their deployment against Oracle's advisory.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.0006,"input_tokens":3554,"output_tokens":490,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':15A,18A '-91536':16A,19A '/av':182C '12.2.1.4.0':42B,94C '14.1.2.0.0':44B,96C '3.1':169C,181C '5.0':172C 'abil':154C 'access':65B,107C,128C,135C,142C,150C 'affect':92C 'allow':101C 'attack':58B,104C,116C 'avail':176C 'base':170C 'caus':68B,156C 'chang':12A,61B 'compon':85C 'compromis':111C 'confidenti':173C 'cve':14A,17A 'cvss':168C,178C,180C 'data':13A,66B,136C,151C 'delet':63B,127C 'denial':71B,159C 'difficult':97C 'dos':163C 'exploit':99C 'fabric':4A,36B,86C 'flaw':6A,33B 'fusion':22B,83C 'h/pr':184C 'host':30B 'https':55B,109C 'impact':177C 'insert':125C 'integr':174C 'l':190C 'l/a':189C 'l/i':188C 'l/ui':185C 'layer':5A,37B,87C 'let':7A,45B 'low':9A,48B,102C 'low-privileg':8A,47B 'middlewar':23B,84C 'n/ac':183C 'n/s':186C 'network':106C 'oracl':1A,21B,25B,39B,77C,82C,112C,132C,147C,165C 'oracle-fusion-middlewar':20B 'oracle-soa-suit':24B 'partial':70B,158C,162C 'privileg':10A,49B,103C 'product':53B,80C 'reach':51B 'read':60B,141C 'result':121C 'score':171C 'self':29B 'self-host':28B 'servic':73B,161C 'soa':2A,26B,40B,78C,113C,133C,148C,166C 'subset':145C 'success':57B,115C 'suit':3A,27B,41B,79C,114C,134C,149C,167C 'support':88C 'u/c':187C 'unauthor':123C,140C,153C 'updat':124C 'user':11A,50B 'vector':179C 'vendor':31B 'version':89C 'via':108C 'vulner':74C,100C,119C 'well':138C","nicknames":[],"mitigations":[],"who_affected":"Teams running Oracle SOA Suite 12.2.1.4.0 or 14.1.2.0.0 with network access to its HTTPS endpoints are in scope. The sources do not say which configurations expose the Fabric Layer, so teams should confirm their deployment against Oracle's advisory.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:57+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91536","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91536","severity":null,"published_at":"2026-10-20T22:20:57+00:00","modified_at":"2026-10-21T18:44:55+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","fetched_at":"2026-10-23T22:29:00+00:00","note":null},{"source":"epss","external_id":"CVE-2026-91536","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91536","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"}