{"id":"CVE-2026-123549","kind":"vulnerability","aliases":["CVE-2026-123549"],"related":[],"title":"OpenAM: self-registration lets anonymous users join admin groups","description":"OpenAM before 16.1.4 fails to enforce the Valid Creation Attributes list during self-registration, allowing anonymous attackers to set restricted attributes including group membership. Attackers can register through the legacy self-service REST endpoint or User Self-Service flow to join administrative groups and gain full administrative control of OpenAM.","summary":"OpenAM before 16.1.4 does not enforce its list of allowed attributes during self-registration. An anonymous attacker can set restricted fields such as group membership and gain full administrative control.","severity":"critical","cvss":9.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["identity","infrastructure","openam","self-hosted"],"not_affected_if":["auth-required","self-registration-disabled"],"how_to_check":"- Check the OpenAM version in use; affected versions are those before `16.1.4`.\n- Review whether the legacy self-service REST endpoint or User Self-Service flow is enabled.","fix":"- Move to OpenAM `16.1.4` or later.","status":"open","published_at":"2026-11-08T02:16:46+00:00","first_seen_at":"2026-11-08T02:21:11+00:00","triaged_at":"2026-11-08T02:22:33+00:00","updated_at":"2026-11-08T02:22:33+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-08T02:22:33Z","model":"claude-haiku-5-5","output":{"fix":"- Move to OpenAM `16.1.4` or later.","reach":"internet","title":"OpenAM: self-registration lets anonymous users join admin groups","impact":"high","summary":"OpenAM before 16.1.4 does not enforce its list of allowed attributes during self-registration. An anonymous attacker can set restricted fields such as group membership and gain full administrative control.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["openam","identity","self-hosted"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"Anonymous attacker becomes an OpenAM administrator and controls the identity system","analyst_note":"Confirm whether self-registration is enabled by default and whether the vendor advisory on github.com lists affected ranges beyond 'before 16.1.4'.","how_to_check":"- Check the OpenAM version in use; affected versions are those before `16.1.4`.\n- Review whether the legacy self-service REST endpoint or User Self-Service flow is enabled.","plain_action":"","needs_analyst":true,"not_affected_if":["auth-required","self-registration-disabled"],"who_is_affected":"Organizations running OpenAM before 16.1.4 where self-registration is reachable, including via the legacy self-service REST endpoint or User Self-Service flow. Deployments without self-registration exposed may be less exposed, but the sources do not say this is a safe configuration.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000698,"input_tokens":4279,"output_tokens":541,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-123549':13A,16A '-2026':12A,15A '16.1.4':25B,56C 'admin':9A 'administr':52B,98C,103C 'allow':32B,69C 'anonym':6A,39B,70C 'attack':40B,71C,79C 'attribut':33B,63C,75C 'control':53B,104C 'creation':62C 'cve':11A,14A 'endpoint':89C 'enforc':28B,59C 'fail':57C 'field':44B 'flow':95C 'full':51B,102C 'gain':50B,101C 'group':10A,47B,77C,99C 'host':22B 'ident':17B 'includ':76C 'infrastructur':18B 'join':8A,97C 'legaci':84C 'let':5A 'list':30B,64C 'membership':48B,78C 'openam':1A,19B,23B,54C,106C 'regist':81C 'registr':4A,37B,68C 'rest':88C 'restrict':43B,74C 'self':3A,21B,36B,67C,86C,93C 'self-host':20B 'self-registr':2A,35B,66C 'self-servic':85C,92C 'servic':87C,94C 'set':42B,73C 'user':7A,91C 'valid':61C","nicknames":[],"mitigations":[],"who_affected":"Organizations running OpenAM before 16.1.4 where self-registration is reachable, including via the legacy self-service REST endpoint or User Self-Service flow. Deployments without self-registration exposed may be less exposed, but the sources do not say this is a safe configuration.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["critical","identity","infrastructure","openam","selfhosted"],"campaign_type":null,"search_a":"'-123549':13A,16A '-2026':12A,15A 'admin':9A 'anonym':6A 'cve':11A,14A 'group':10A 'join':8A 'let':5A 'openam':1A 'registr':4A 'self':3A 'self-registr':2A 'user':7A","search_b":"'16.1.4':25B 'administr':52B 'allow':32B 'anonym':39B 'attack':40B 'attribut':33B 'control':53B 'enforc':28B 'field':44B 'full':51B 'gain':50B 'group':47B 'host':22B 'ident':17B 'infrastructur':18B 'list':30B 'membership':48B 'openam':19B,23B 'registr':37B 'restrict':43B 'self':21B,36B 'self-host':20B 'self-registr':35B 'set':42B","search_c":"'16.1.4':56C 'administr':98C,103C 'allow':69C 'anonym':70C 'attack':71C,79C 'attribut':63C,75C 'control':104C 'creation':62C 'endpoint':89C 'enforc':59C 'fail':57C 'flow':95C 'full':102C 'gain':101C 'group':77C,99C 'includ':76C 'join':97C 'legaci':84C 'list':64C 'membership':78C 'openam':54C,106C 'regist':81C 'registr':68C 'rest':88C 'restrict':74C 'self':67C,86C,93C 'self-registr':66C 'self-servic':85C,92C 'servic':87C,94C 'set':73C 'user':91C 'valid':61C","first_public_at":"2026-10-22T08:54:42+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123549","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123549","severity":null,"published_at":"2026-11-08T02:16:46+00:00","modified_at":"2026-11-08T02:16:46+00:00","first_seen_at":"2026-11-08T02:21:11+00:00","fetched_at":"2026-11-08T02:21:11+00:00","note":null}],"documents":[{"id":99247,"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-jv8f-m88g-h6mm","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-10-22T08:54:42+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"},{"id":99248,"url":"https://www.vulncheck.com/advisories/openam-before-16.1.4-privilege-escalation-via-self-registration-attribute-bypass","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}