{"id":"CVE-2026-101389","kind":"vulnerability","aliases":["CVE-2026-101389"],"related":[],"title":"Oracle PeopleSoft PeopleTools: unauthenticated HTTP request can crash Business Interlink","description":"Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Business Interlink).  Supported versions that are affected are 8.61-8.63. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 5.9 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).","summary":"Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 has a flaw in the Business Interlink component. An unauthenticated remote attacker who can reach it over HTTP can cause a hang or repeatable crash, a denial of service, but cannot read or change data.","severity":"medium","cvss":5.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle","peoplesoft","peopletools","self-hosted","vendor"],"not_affected_if":["network-restricted","no-business-interlink","unsupported-version"],"how_to_check":"- Check the installed PeopleTools version against the affected range `8.61` to `8.63`\n- Confirm whether Business Interlink is deployed and reachable over HTTP from untrusted networks\n- Review the Oracle Critical Patch Update advisory for the exact patch list (unknown from these sources)","fix":"- Apply the Oracle Critical Patch Update fix for PeopleSoft Enterprise PeopleTools 8.61 to 8.63 (exact patch id unknown from these sources)\n- Restrict HTTP access to Business Interlink endpoints to trusted networks until patched","status":"open","published_at":"2026-10-20T22:17:46+00:00","first_seen_at":"2026-10-23T21:57:21+00:00","triaged_at":"2026-10-25T04:08:40+00:00","updated_at":"2026-10-25T04:08:40+00:00","category":"vendor","confidence":0.7,"triage":{"at":"2026-10-25T04:08:40Z","model":"claude-haiku-5-5","output":{"fix":"- Apply the Oracle Critical Patch Update fix for PeopleSoft Enterprise PeopleTools 8.61 to 8.63 (exact patch id unknown from these sources)\n- Restrict HTTP access to Business Interlink endpoints to trusted networks until patched","reach":"internet","title":"Oracle PeopleSoft PeopleTools: unauthenticated HTTP request can crash Business Interlink","impact":"low","summary":"Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 has a flaw in the Business Interlink component. An unauthenticated remote attacker who can reach it over HTTP can cause a hang or repeatable crash, a denial of service, but cannot read or change data.","category":"vendor","nicknames":[],"who_cares":["peoplesoft","peopletools","oracle","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Unauthenticated remote crash or hang of PeopleTools, causing denial of service","analyst_note":"Confirm exact patch identifiers and whether Business Interlink is enabled by default, using the Oracle CPU advisory for this CVE.","how_to_check":"- Check the installed PeopleTools version against the affected range `8.61` to `8.63`\n- Confirm whether Business Interlink is deployed and reachable over HTTP from untrusted networks\n- Review the Oracle Critical Patch Update advisory for the exact patch list (unknown from these sources)","needs_analyst":true,"not_affected_if":["unsupported-version","no-business-interlink","network-restricted"],"who_is_affected":"Organisations running Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 with Business Interlink exposed over HTTP. The sources do not say whether the component is enabled by default, so deployments that do not use Business Interlink or keep it off the internet are likely lower risk.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000705,"input_tokens":3501,"output_tokens":710,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-101389':13A,16A '-2026':12A,15A '-8.63':86C '/av':139C '3.1':129C,138C '5.9':132C '8.61':28B,85C '8.63':30B 'abil':113C 'access':96C 'affect':83C 'allow':91C 'attack':42B,93C,105C 'avail':133C 'base':130C 'busi':9A,36B,77C 'cannot':61B 'caus':50B,115C 'chang':64B 'complet':122C 'compon':38B,76C 'compromis':100C 'crash':8A,55B,121C 'cve':11A,14A 'cvss':128C,135C,137C 'data':65B 'denial':57B 'difficult':87C 'dos':123C 'enterpris':26B,70C,102C,126C 'exploit':89C 'flaw':33B 'frequent':119C 'h':147C 'h/pr':141C 'hang':52B,117C 'host':22B 'http':5A,48B,98C 'impact':134C 'interlink':10A,37B,78C 'n/a':146C 'n/ac':140C 'n/i':145C 'n/s':143C 'n/ui':142C 'network':95C 'oracl':1A,17B,24B,74C 'peoplesoft':2A,18B,25B,69C,75C,101C,125C 'peopletool':3A,19B,27B,71C,103C,127C 'product':72C 'reach':45B 'read':62B 'remot':41B 'repeat':54B,120C 'request':6A 'result':110C 'score':131C 'self':21B 'self-host':20B 'servic':59B 'success':104C 'support':79C 'u/c':144C 'unauthent':4A,40B,92C 'unauthor':112C 'vector':136C 'vendor':23B 'version':80C 'via':97C 'vulner':66C,90C,108C","nicknames":[],"mitigations":[],"who_affected":"Organisations running Oracle PeopleSoft Enterprise PeopleTools 8.61 through 8.63 with Business Interlink exposed over HTTP. The sources do not say whether the component is enabled by default, so deployments that do not use Business Interlink or keep it off the internet are likely lower risk.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:17:46+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-101389","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101389","severity":null,"published_at":"2026-10-20T22:17:46+00:00","modified_at":"2026-10-21T18:45:11+00:00","first_seen_at":"2026-10-23T21:57:21+00:00","fetched_at":"2026-10-23T22:28:58+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"}