{"id":"CVE-2026-114154","kind":"vulnerability","aliases":["CVE-2026-114154"],"related":[],"title":"ASP.NET Core: uncontrolled resource use lets remote attackers crash service","description":"Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.","summary":"ASP.NET Core does not limit a resource it consumes, so an unauthenticated attacker can exhaust it over the network. The result is a denial of service for applications hosted on it.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["aspnet-core","dotnet","runtime","web-api"],"not_affected_if":[],"how_to_check":"- Confirm the ASP.NET Core runtime or shared framework version with `dotnet --list-runtimes`\n- Check whether the application's project targets an affected ASP.NET Core version in its `.csproj` file","fix":null,"status":"open","published_at":"2026-11-10T19:19:08+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","triaged_at":"2026-11-10T19:44:59+00:00","updated_at":"2026-11-10T19:44:59+00:00","category":"runtime","confidence":0.4,"triage":{"at":"2026-11-10T19:44:59Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"ASP.NET Core: uncontrolled resource use lets remote attackers crash service","impact":"low","summary":"ASP.NET Core does not limit a resource it consumes, so an unauthenticated attacker can exhaust it over the network. The result is a denial of service for applications hosted on it.","audience":"businesses","category":"runtime","nicknames":[],"who_cares":["aspnet-core","dotnet","web-api"],"confidence":0.4,"fix_status":"unknown","needs_auth":"no","worst_case":"unauthenticated remote denial of service against hosted applications","analyst_note":"Check the NVD entry and the Microsoft security advisory for affected ASP.NET Core version ranges, fixed versions and the triggering feature.","how_to_check":"- Confirm the ASP.NET Core runtime or shared framework version with `dotnet --list-runtimes`\n- Check whether the application's project targets an affected ASP.NET Core version in its `.csproj` file\n- unknown for other specific checks: the sources do not say which configuration triggers it","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000676,"input_tokens":4494,"output_tokens":454,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the NVD entry and the Microsoft security advisory for affected ASP.NET Core version ranges, fixed versions and the triggering feature.","search":"'-114154':13A,16A '-2026':12A,15A 'allow':60C 'api':24B 'applic':52B 'asp.net':1A,25B,58C 'aspnet':18B 'aspnet-cor':17B 'attack':8A,37B,63C 'consum':33B 'consumpt':56C 'core':2A,19B,26B,59C 'crash':9A 'cve':11A,14A 'deni':65C 'denial':48B 'dotnet':20B 'exhaust':39B 'host':53B 'let':6A 'limit':29B 'network':43B,69C 'remot':7A 'resourc':4A,31B,55C 'result':45B 'runtim':21B 'servic':10A,50B,66C 'unauthent':36B 'unauthor':62C 'uncontrol':3A,54C 'use':5A 'web':23B 'web-api':22B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["aspnetcore","dotnet","high","runtime","webapi"],"campaign_type":null,"search_a":"'-114154':13A,16A '-2026':12A,15A 'asp.net':1A 'attack':8A 'core':2A 'crash':9A 'cve':11A,14A 'let':6A 'remot':7A 'resourc':4A 'servic':10A 'uncontrol':3A 'use':5A","search_b":"'api':24B 'applic':52B 'asp.net':25B 'aspnet':18B 'aspnet-cor':17B 'attack':37B 'consum':33B 'core':19B,26B 'denial':48B 'dotnet':20B 'exhaust':39B 'host':53B 'limit':29B 'network':43B 'resourc':31B 'result':45B 'runtim':21B 'servic':50B 'unauthent':36B 'web':23B 'web-api':22B","search_c":"'allow':60C 'asp.net':58C 'attack':63C 'consumpt':56C 'core':59C 'deni':65C 'network':69C 'resourc':55C 'servic':66C 'unauthor':62C 'uncontrol':54C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:08+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114154","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114154","severity":null,"published_at":"2026-11-10T19:19:08+00:00","modified_at":"2026-11-10T19:19:08+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","fetched_at":"2026-11-10T19:24:43+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}