{"id":"CVE-2026-91562","kind":"vulnerability","aliases":["CVE-2026-91562"],"related":[],"title":"Oracle PeopleSoft FIN Inventory Brazil: low-privilege users can alter data and degrade service","description":"Vulnerability in the PeopleSoft Enterprise FIN Inventory Brazil product of Oracle PeopleSoft (component: Inventory).   The supported version that is affected is 9.1. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where PeopleSoft Enterprise FIN Inventory Brazil executes to compromise PeopleSoft Enterprise FIN Inventory Brazil.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise FIN Inventory Brazil accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise FIN Inventory Brazil. CVSS 3.1 Base Score 4.4 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L).","summary":"A flaw in the Inventory component of Oracle PeopleSoft Enterprise FIN Inventory Brazil 9.1 lets a low-privileged user who can log on to the underlying infrastructure modify or delete some accessible data. It also allows a partial denial of service against the application.","severity":"medium","cvss":4.4,"epss":0.00103,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["erp","oracle","peoplesoft","self-hosted","vendor"],"not_affected_if":["no-local-logon-access-to-host","not-running-peoplesoft-fin-inventory-brazil"],"how_to_check":"- Confirm whether PeopleSoft Enterprise FIN Inventory Brazil 9.1 is installed in your environment\n- Check the installed PeopleSoft patch level against Oracle's Critical Patch Update advisory for this CVE (unknown from the sources)","fix":"- Apply the Oracle Critical Patch Update that addresses CVE-2026-91562 for PeopleSoft Enterprise FIN Inventory Brazil 9.1 (exact patch identifier unknown from the sources)","status":"open","published_at":"2026-10-20T22:20:59+00:00","first_seen_at":"2026-10-23T21:57:27+00:00","triaged_at":"2026-10-25T04:35:45+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-10-25T04:35:45Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update that addresses CVE-2026-91562 for PeopleSoft Enterprise FIN Inventory Brazil 9.1 (exact patch identifier unknown from the sources)","reach":"local","title":"Oracle PeopleSoft FIN Inventory Brazil: low-privilege users can alter data and degrade service","impact":"medium","summary":"A flaw in the Inventory component of Oracle PeopleSoft Enterprise FIN Inventory Brazil 9.1 lets a low-privileged user who can log on to the underlying infrastructure modify or delete some accessible data. It also allows a partial denial of service against the application.","category":"vendor","nicknames":[],"who_cares":["peoplesoft","oracle","erp","self-hosted"],"confidence":0.7,"needs_auth":"yes","worst_case":"Low-privileged local user modifies or deletes some accessible data and partly disrupts service","analyst_note":"Check Oracle's April 2026 Critical Patch Update advisory for the patch level that fixes CVE-2026-91562 in PeopleSoft FIN Inventory Brazil 9.1.","how_to_check":"- Confirm whether PeopleSoft Enterprise FIN Inventory Brazil 9.1 is installed in your environment\n- Check the installed PeopleSoft patch level against Oracle's Critical Patch Update advisory for this CVE (unknown from the sources)","needs_analyst":true,"not_affected_if":["not-running-peoplesoft-fin-inventory-brazil","no-local-logon-access-to-host"],"who_is_affected":"Organisations running PeopleSoft Enterprise FIN Inventory Brazil version 9.1 are affected. The attacker must already have logon access to the infrastructure where the application runs, so exposure is limited to shared or poorly restricted hosts. Teams that do not run this product can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.00071,"input_tokens":3581,"output_tokens":703,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':17A,20A '-91562':18A,21A '/av':177C '3.1':165C,176C '4.4':168C '9.1':42B,95C 'abil':148C 'access':61B,135C,144C 'affect':93C 'allow':65B,99C 'also':64B 'alter':11A 'applic':73B 'attack':102C,123C 'avail':171C 'base':166C 'brazil':5A,41B,81C,113C,121C,143C,163C 'caus':150C 'compon':34B,86C 'compromis':116C 'cve':16A,19A 'cvss':164C,173C,175C 'data':12A,62B,145C 'degrad':14A 'delet':59B,134C 'denial':68B,153C 'dos':157C 'easili':96C 'enterpris':38B,78C,110C,118C,140C,160C 'erp':22B 'execut':114C 'exploit':97C 'fin':3A,39B,79C,111C,119C,141C,161C 'flaw':30B 'host':27B 'impact':172C 'infrastructur':56B,107C 'insert':132C 'integr':169C 'inventori':4A,33B,40B,80C,87C,112C,120C,142C,162C 'l':185C 'l/a':184C 'l/ac':178C 'l/pr':179C 'l/ui':180C 'let':43B 'log':51B 'logon':104C 'low':7A,46B,100C 'low-privileg':6A,45B 'modifi':57B 'n/i':183C 'n/s':181C 'oracl':1A,23B,36B,84C 'partial':67B,152C,156C 'peoplesoft':2A,24B,37B,77C,85C,109C,117C,139C,159C 'privileg':8A,47B,101C 'product':82C 'result':128C 'score':167C 'self':26B 'self-host':25B 'servic':15A,70B,155C 'success':122C 'support':89C 'u/c':182C 'unauthor':130C,147C 'under':55B 'updat':131C 'user':9A,48B 'vector':174C 'vendor':28B 'version':90C 'vulner':74C,98C,126C","nicknames":[],"mitigations":[],"who_affected":"Organisations running PeopleSoft Enterprise FIN Inventory Brazil version 9.1 are affected. The attacker must already have logon access to the infrastructure where the application runs, so exposure is limited to shared or poorly restricted hosts. Teams that do not run this product can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:20:59+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-91562","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91562","severity":null,"published_at":"2026-10-20T22:20:59+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-2026-91562","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91562","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"}