{"id":"GHSA-5j4v-g9j4-3f38","kind":"package","aliases":["GHSA-5j4v-g9j4-3f38","MAL-2026-17418"],"related":[],"title":"Malicious code in future-scripts (npm)","description":"On October 10, 2026 (local time), boom() calls localStorage.setItem('key', i) 100,000,000 times in a synchronous loop, potentially freezing a browser page. In version 0.0.2, the exported getCommonDateInRanges() calls boom() before input validation; the bundled source map confirms this path. Version 0.0.3 retains boom() as a separate export but no longer calls it from getCommonDateInRanges(), so an explicit call is required. Version 0.0.1 does not contain this routine. This is a static finding; actual victim impact was not observed.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: ghsa-malware (85a5edaae5c58b417dfd2c63bf8f2529bc3aa75784254950f457847fc7840561)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.","summary":null,"severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"future-scripts","note":"all versions","fixed":[],"affected":"","ecosystem":"npm"}],"ecosystems":["npm"],"tags":["malicious","package"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-12T17:58:37+00:00","first_seen_at":"2026-11-12T19:09:43+00:00","triaged_at":"2026-11-12T19:11:35+00:00","updated_at":"2026-11-12T19:19:47+00:00","category":"package","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'-17418':15A '-2026':14A '0.0.1':90C '0.0.2':52C '0.0.3':69C '000':38C,39C '10':28C '100':37C '2026':29C '3f38':12A,20A '5j4v':10A,18A '85a5edaae5c58b417dfd2c63bf8f2529bc3aa75784254950f457847fc7840561':120C 'actual':101C 'boom':32C,57C,71C 'browser':48C 'bundl':62C 'call':33C,56C,79C,86C 'code':2A 'compromis':134C 'comput':122C,142C,150C,162C 'confirm':65C 'consid':132C 'contain':93C 'control':159C 'detail':109C 'differ':149C 'edit':112C 'entiti':170C 'explicit':85C 'export':54C,75C 'find':100C 'freez':46C 'full':158C 'fulli':133C 'futur':5A 'future':22A 'future-script':4A 'future-scripts':21A 'g9j4':11A,19A 'getcommondateinrang':55C,82C 'ghsa':9A,17A,118C 'ghsa-5j4v-g9j4-3f38':8A,16A 'ghsa-malwar':117C 'given':166C 'guarante':174C 'immedi':146C 'impact':103C 'input':59C 'instal':127C,186C 'key':35C,138C 'line':115C 'local':30C 'localstorage.setitem':34C 'longer':78C 'loop':44C 'mal':13A 'malici':1A,24B,182C 'malwar':119C 'map':64C 'may':163C 'npm':7A 'observ':106C 'octob':27C 'outsid':169C 'packag':25B,126C,152C,178C 'page':49C 'path':67C 'per':107C 'potenti':45C 'remov':155C,176C,180C 'requir':88C 'result':184C 'retain':70C 'rotat':145C 'routin':95C 'run':129C 'script':6A 'scripts':23A 'secret':136C 'separ':74C 'softwar':183C 'sourc':63C,108C,116C 'static':99C 'store':139C 'synchron':43C 'time':31C,40C 'valid':60C 'version':51C,68C,89C 'victim':102C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"pkeys":["futurescripts"],"ptokens":["future","scripts"],"labels":["critical","malicious","npm","package"],"campaign_type":null,"search_a":"'-17418':15A '-2026':14A '3f38':12A,20A '5j4v':10A,18A 'code':2A 'futur':5A 'future':22A 'future-script':4A 'future-scripts':21A 'g9j4':11A,19A 'ghsa':9A,17A 'ghsa-5j4v-g9j4-3f38':8A,16A 'mal':13A 'malici':1A 'npm':7A 'script':6A 'scripts':23A","search_b":"'malici':24B 'packag':25B","search_c":"'0.0.1':90C '0.0.2':52C '0.0.3':69C '000':38C,39C '10':28C '100':37C '2026':29C '85a5edaae5c58b417dfd2c63bf8f2529bc3aa75784254950f457847fc7840561':120C 'actual':101C 'boom':32C,57C,71C 'browser':48C 'bundl':62C 'call':33C,56C,79C,86C 'compromis':134C 'comput':122C,142C,150C,162C 'confirm':65C 'consid':132C 'contain':93C 'control':159C 'detail':109C 'differ':149C 'edit':112C 'entiti':170C 'explicit':85C 'export':54C,75C 'find':100C 'freez':46C 'full':158C 'fulli':133C 'getcommondateinrang':55C,82C 'ghsa':118C 'ghsa-malwar':117C 'given':166C 'guarante':174C 'immedi':146C 'impact':103C 'input':59C 'instal':127C,186C 'key':35C,138C 'line':115C 'local':30C 'localstorage.setitem':34C 'longer':78C 'loop':44C 'malici':182C 'malwar':119C 'map':64C 'may':163C 'observ':106C 'octob':27C 'outsid':169C 'packag':126C,152C,178C 'page':49C 'path':67C 'per':107C 'potenti':45C 'remov':155C,176C,180C 'requir':88C 'result':184C 'retain':70C 'rotat':145C 'routin':95C 'run':129C 'secret':136C 'separ':74C 'softwar':183C 'sourc':63C,108C,116C 'static':99C 'store':139C 'synchron':43C 'time':31C,40C 'valid':60C 'version':51C,68C,89C 'victim':102C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-12T17:58:37+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"osv-malicious","external_id":"MAL-2026-17418","url":"https://osv.dev/vulnerability/MAL-2026-17418","severity":"critical","published_at":"2026-11-12T17:58:37+00:00","modified_at":"2026-11-12T18:30:05+00:00","first_seen_at":"2026-11-12T19:09:43+00:00","fetched_at":"2026-11-12T19:09:43+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"}