{"id":"CVE-2026-55319","kind":"vulnerability","aliases":["CVE-2026-55319"],"related":[],"title":"Android kernel: thread creation failure corrupts heap, enabling local privilege escalation","description":"In thread_free of thread.c, there is a possible way to corrupt kernel heap metadata on thread creation failure due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","summary":"A flaw in the kernel's thread_free routine can corrupt kernel heap metadata when thread creation fails. A local app or process could use this to escalate privileges to kernel level without extra permissions or user interaction.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","infrastructure","kernel","linux"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T20:19:13+00:00","first_seen_at":"2026-11-10T20:46:05+00:00","triaged_at":"2026-11-10T20:54:04+00:00","updated_at":"2026-11-10T20:54:04+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T20:54:04Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Android kernel: thread creation failure corrupts heap, enabling local privilege escalation","impact":"high","summary":"A flaw in the kernel's thread_free routine can corrupt kernel heap metadata when thread creation fails. A local app or process could use this to escalate privileges to kernel level without extra permissions or user interaction.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["kernel","android","linux"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Local code gains kernel-level privileges on the device.","analyst_note":"Identify the affected kernel or Android versions and the vendor patch level from the NVD entry or the Android security bulletin.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Local code on a device running the affected kernel can trigger the corruption; the sources do not name the affected versions or devices. Systems that cannot patch the kernel should treat local untrusted code as a risk until a vendor fix is confirmed.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000676,"input_tokens":4531,"output_tokens":446,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-55319':14A,17A 'addit':93C 'android':1A,18B 'app':42B 'corrupt':6A,32B,71C,82C 'could':45B,84C 'creation':4A,38B,77C 'cve':12A,15A 'due':79C 'enabl':8A 'escal':11A,49B,88C 'execut':94C 'exploit':103C 'extra':55B 'fail':39B 'failur':5A,78C 'flaw':23B 'free':29B,62C 'heap':7A,34B,73C 'infrastructur':19B 'interact':59B,98C 'kernel':2A,20B,26B,33B,52B,72C 'lead':85C 'level':53B 'linux':21B 'local':9A,41B,87C 'memori':81C 'metadata':35B,74C 'need':96C,101C 'permiss':56B 'possibl':68C 'privileg':10A,50B,90C,95C 'process':44B 'routin':30B 'thread':3A,28B,37B,61C,76C 'thread.c':64C 'use':46B 'user':58B,97C 'way':69C 'without':54B","nicknames":[],"mitigations":[],"who_affected":"Local code on a device running the affected kernel can trigger the corruption; the sources do not name the affected versions or devices. Systems that cannot patch the kernel should treat local untrusted code as a risk until a vendor fix is confirmed.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["android","infrastructure","kernel","linux","unknown"],"campaign_type":null,"search_a":"'-2026':13A,16A '-55319':14A,17A 'android':1A 'corrupt':6A 'creation':4A 'cve':12A,15A 'enabl':8A 'escal':11A 'failur':5A 'heap':7A 'kernel':2A 'local':9A 'privileg':10A 'thread':3A","search_b":"'android':18B 'app':42B 'corrupt':32B 'could':45B 'creation':38B 'escal':49B 'extra':55B 'fail':39B 'flaw':23B 'free':29B 'heap':34B 'infrastructur':19B 'interact':59B 'kernel':20B,26B,33B,52B 'level':53B 'linux':21B 'local':41B 'metadata':35B 'permiss':56B 'privileg':50B 'process':44B 'routin':30B 'thread':28B,37B 'use':46B 'user':58B 'without':54B","search_c":"'addit':93C 'corrupt':71C,82C 'could':84C 'creation':77C 'due':79C 'escal':88C 'execut':94C 'exploit':103C 'failur':78C 'free':62C 'heap':73C 'interact':98C 'kernel':72C 'lead':85C 'local':87C 'memori':81C 'metadata':74C 'need':96C,101C 'possibl':68C 'privileg':90C,95C 'thread':61C,76C 'thread.c':64C 'user':97C 'way':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T20:19:13+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-55319","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55319","severity":null,"published_at":"2026-11-10T20:19:13+00:00","modified_at":"2026-11-10T20:19:13+00:00","first_seen_at":"2026-11-10T20:46:05+00:00","fetched_at":"2026-11-10T20:46:05+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"}