{"id":"CVE-2026-83427","kind":"vulnerability","aliases":["CVE-2026-83427"],"related":[],"title":"Oracle PeopleSoft PeopleTools: Multichannel Framework flaw allows full takeover","description":"Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Multichannel Framework).  Supported versions that are affected are 8.61-8.63. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools.  Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 6.6 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).","summary":"Oracle PeopleSoft Enterprise PeopleTools versions 8.61 through 8.63 have a flaw in the Multichannel Framework component. A high-privileged attacker with network access over HTTP can take over the PeopleTools installation.","severity":"medium","cvss":6.6,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["oracle","peoplesoft","peopletools","runtime","self-hosted"],"not_affected_if":["other-peopletools-release"],"how_to_check":"- Confirm the PeopleTools release in use: unknown\n- Check whether the Multichannel Framework component is enabled: unknown","fix":"- Move PeopleSoft Enterprise PeopleTools to a release outside 8.61-8.63 or apply the Oracle patch for this CVE: unknown\n- Consult Oracle's Critical Patch Update advisory for the fixed version: unknown","status":"open","published_at":"2026-10-20T22:19:57+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","triaged_at":"2026-10-25T03:46:53+00:00","updated_at":"2026-10-25T03:46:53+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-25T03:46:53Z","model":"claude-haiku-5-5","output":{"fix":"- Move PeopleSoft Enterprise PeopleTools to a release outside 8.61-8.63 or apply the Oracle patch for this CVE: unknown\n- Consult Oracle's Critical Patch Update advisory for the fixed version: unknown","reach":"network","title":"Oracle PeopleSoft PeopleTools: Multichannel Framework flaw allows full takeover","impact":"high","summary":"Oracle PeopleSoft Enterprise PeopleTools versions 8.61 through 8.63 have a flaw in the Multichannel Framework component. A high-privileged attacker with network access over HTTP can take over the PeopleTools installation.","category":"runtime","nicknames":[],"who_cares":["peoplesoft","peopletools","oracle","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker takes over the PeopleTools installation with high privileges","analyst_note":"Check Oracle's Critical Patch Update advisory for the fixed PeopleTools patch and whether Multichannel Framework is enabled by default.","how_to_check":"- Confirm the PeopleTools release in use: unknown\n- Check whether the Multichannel Framework component is enabled: unknown","needs_analyst":true,"not_affected_if":["other-peopletools-release"],"who_is_affected":"Sites running PeopleSoft Enterprise PeopleTools 8.61 to 8.63 with the Multichannel Framework reachable over HTTP are in scope. The sources do not say whether the component is on by default, so unknown. Teams on other PeopleTools releases can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000649,"input_tokens":3488,"output_tokens":601,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':11A,14A '-8.63':75C '-83427':12A,15A '/av':121C '3.1':108C,120C '6.6':111C '8.61':28B,74C '8.63':30B 'access':46B,86C 'affect':72C 'allow':7A,80C 'attack':43B,83C,95C 'avail':115C 'base':109C 'compon':38B,65C 'compromis':90C 'confidenti':112C 'cve':10A,13A 'cvss':107C,117C,119C 'difficult':76C 'enterpris':25B,59C,92C,105C 'exploit':78C 'flaw':6A,33B 'framework':5A,37B,67C 'full':8A 'h':129C 'h/a':128C 'h/i':127C 'h/pr':123C 'h/ui':124C 'high':41B,81C 'high-privileg':40B 'host':22B 'http':48B,88C 'impact':116C 'instal':54B 'integr':113C 'multichannel':4A,36B,66C 'n/ac':122C 'n/s':125C 'network':45B,85C 'oracl':1A,16B,23B,63C 'peoplesoft':2A,17B,24B,58C,64C,91C,104C 'peopletool':3A,18B,26B,53B,60C,93C,106C 'privileg':42B,82C 'product':61C 'result':100C 'runtim':19B 'score':110C 'self':21B 'self-host':20B 'success':94C 'support':68C 'take':50B 'takeov':9A,102C 'u/c':126C 'vector':118C 'version':27B,69C 'via':87C 'vulner':55C,79C,98C","nicknames":[],"mitigations":[],"who_affected":"Sites running PeopleSoft Enterprise PeopleTools 8.61 to 8.63 with the Multichannel Framework reachable over HTTP are in scope. The sources do not say whether the component is on by default, so unknown. Teams on other PeopleTools releases can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T22:19:57+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secalert_us@oracle.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-83427","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83427","severity":null,"published_at":"2026-10-20T22:19:57+00:00","modified_at":"2026-10-21T18:44:19+00:00","first_seen_at":"2026-10-23T21:57:25+00:00","fetched_at":"2026-10-23T22:29:00+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"}