{"id":"CVE-2026-91541","kind":"vulnerability","aliases":["CVE-2026-91541"],"related":[],"title":"Oracle PeopleSoft FIN Common Objects Brazil: unauthenticated HTTP flaw allows data changes","description":"Vulnerability in the PeopleSoft Enterprise FIN Common Objects Brazil product of Oracle PeopleSoft (component: Common Objects).   The supported version that is affected is 9.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise FIN Common Objects Brazil.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of PeopleSoft Enterprise FIN Common Objects Brazil accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of PeopleSoft Enterprise FIN Common Objects Brazil. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).","summary":"Oracle PeopleSoft Enterprise FIN Common Objects Brazil 9.1 has a flaw in its Common Objects component that a remote, unauthenticated attacker can reach over HTTP. Successful exploitation can let an attacker modify or delete some accessible data and partly disrupt the application.","severity":"medium","cvss":6.5,"epss":0.00318,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["finance","oracle","peoplesoft","self-hosted","vendor"],"not_affected_if":["no-http-exposure","other-peoplesoft-version"],"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":"2026-10-25T03:49:18+00:00","updated_at":"2026-10-25T12:38:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-10-25T03:49:18Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Oracle PeopleSoft FIN Common Objects Brazil: unauthenticated HTTP flaw allows data changes","impact":"medium","summary":"Oracle PeopleSoft Enterprise FIN Common Objects Brazil 9.1 has a flaw in its Common Objects component that a remote, unauthenticated attacker can reach over HTTP. Successful exploitation can let an attacker modify or delete some accessible data and partly disrupt the application.","category":"vendor","nicknames":[],"who_cares":["peoplesoft","oracle","finance","self-hosted"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker alters or deletes some application data and partly disrupts service","analyst_note":"Check Oracle's Critical Patch Update advisory for the fixed PeopleSoft FIN Common Objects Brazil patch level and any stated mitigation for version 9.1.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["other-peoplesoft-version","no-http-exposure"],"who_is_affected":"Organizations running Oracle PeopleSoft Enterprise FIN Common Objects Brazil at version 9.1 that expose the HTTP interface to the network. Sources do not say which configurations are exposed by default, so teams should confirm their deployment and check Oracle's Critical Patch Update advisory.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000621,"input_tokens":3559,"output_tokens":530,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-91541':15A,18A '/av':168C '3.1':156C,167C '6.5':159C '9.1':33B,91C 'abil':138C 'access':61B,100C,124C,134C 'affect':89C 'allow':10A,95C 'applic':67B 'attack':46B,56B,97C,112C 'avail':162C 'base':157C 'brazil':6A,32B,76C,110C,133C,154C 'caus':140C 'chang':12A 'common':4A,30B,39B,74C,82C,108C,131C,152C 'compon':41B,81C 'compromis':104C 'cve':13A,16A 'cvss':155C,164C,166C 'data':11A,62B,135C 'delet':59B,123C 'denial':143C 'disrupt':65B 'dos':147C 'easili':92C 'enterpris':28B,72C,106C,129C,150C 'exploit':52B,93C 'fin':3A,29B,73C,107C,130C,151C 'financ':19B 'flaw':9A,36B 'host':24B 'http':8A,50B,102C 'impact':163C 'insert':121C 'integr':160C 'l':176C 'l/a':175C 'l/pr':170C 'let':54B 'modifi':57B 'n/ac':169C 'n/i':174C 'n/s':172C 'n/ui':171C 'network':99C 'object':5A,31B,40B,75C,83C,109C,132C,153C 'oracl':1A,20B,26B,79C 'part':64B 'partial':142C,146C 'peoplesoft':2A,21B,27B,71C,80C,105C,128C,149C 'product':77C 'reach':48B 'remot':44B 'result':117C 'score':158C 'self':23B 'self-host':22B 'servic':145C 'success':51B,111C 'support':85C 'u/c':173C 'unauthent':7A,45B,96C 'unauthor':119C,137C 'updat':120C 'vector':165C 'vendor':25B 'version':86C 'via':101C 'vulner':68C,94C,115C","nicknames":[],"mitigations":[],"who_affected":"Organizations running Oracle PeopleSoft Enterprise FIN Common Objects Brazil at version 9.1 that expose the HTTP interface to the network. Sources do not say which configurations are exposed by default, so teams should confirm their deployment and check Oracle's Critical Patch Update 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:L/PR:N/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-2026-91541","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91541","severity":null,"published_at":"2026-10-20T22:20:57+00:00","modified_at":"2026-10-22T19:18:05+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-2026-91541","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-91541","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"}