{"id":"CVE-2026-43849","kind":"vulnerability","aliases":["CVE-2026-43849"],"related":[],"title":"Heap memory read flaw could let attackers exfiltrate sensitive data","description":"A heap memory read vulnerability could allow an attacker to exfiltrate sensitive data.","summary":"A heap memory read flaw lets an attacker read data from process memory that should stay private. The source describes the data exposure but does not name the affected product.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-20T10:17:05+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","triaged_at":"2026-10-25T03:40:29+00:00","updated_at":"2026-10-25T03:40:29+00:00","category":"other","confidence":0.3,"triage":{"at":"2026-10-25T03:40:29Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"Heap memory read flaw could let attackers exfiltrate sensitive data","impact":"medium","summary":"A heap memory read flaw lets an attacker read data from process memory that should stay private. The source describes the data exposure but does not name the affected product.","category":"other","nicknames":[],"who_cares":[],"confidence":0.3,"needs_auth":"unknown","worst_case":"Attacker reads sensitive heap memory contents, possibly including secrets","analyst_note":"Identify the affected product and version from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-43849 and check vendor advisories.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000485,"input_tokens":3241,"output_tokens":321,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-43849':13A,16A 'affect':45B 'allow':53C 'attack':7A,24B,55C 'could':5A,52C 'cve':11A,14A 'data':10A,26B,38B,59C 'describ':36B 'exfiltr':8A,57C 'exposur':39B 'flaw':4A,21B 'heap':1A,18B,48C 'let':6A,22B 'memori':2A,19B,29B,49C 'name':43B 'privat':33B 'process':28B 'product':46B 'read':3A,20B,25B,50C 'sensit':9A,58C 'sourc':35B 'stay':32B 'vulner':51C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T10:17:05+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/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":"5f57b9bf-260d-4433-bf07-b6a79e9bb7d4","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-43849","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43849","severity":null,"published_at":"2026-10-20T10:17:05+00:00","modified_at":"2026-10-20T19:30:59+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","fetched_at":"2026-10-23T22:28:57+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"}