{"id":"CVE-2026-112053","kind":"vulnerability","aliases":["CVE-2026-112053"],"related":[],"title":"libschroedinger: crafted Dirac stream reads past quantiser table, crashes decoders","description":"Schroedinger libschroedinger through 1.0.11 contains an out-of-bounds read vulnerability that allows attackers to read past a static quantiser table by supplying unvalidated wavelet filter index or transform depth values. Attackers can deliver a crafted low-delay Dirac stream with a wavelet filter index of 7 or more or transform depth of 5 or 6 to crash decoding applications.","summary":"libschroedinger is a library for decoding Dirac video streams. A crafted low-delay Dirac stream with an out-of-range wavelet filter index or transform depth makes it read past a static quantiser table, which crashes the decoding application.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["dirac-decoding","libschroedinger","media-pipelines","package"],"not_affected_if":["no-dirac-decoding"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-18T13:16:37+00:00","first_seen_at":"2026-10-23T21:57:15+00:00","triaged_at":"2026-10-25T03:45:00+00:00","updated_at":"2026-10-25T03:45:00+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:45:00Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"libschroedinger: crafted Dirac stream reads past quantiser table, crashes decoders","impact":"low","summary":"libschroedinger is a library for decoding Dirac video streams. A crafted low-delay Dirac stream with an out-of-range wavelet filter index or transform depth makes it read past a static quantiser table, which crashes the decoding application.","category":"package","nicknames":[],"who_cares":["libschroedinger","dirac-decoding","media-pipelines"],"confidence":0.6,"needs_auth":"no","worst_case":"decoding process crashes; out-of-bounds read reported, code execution not stated","analyst_note":"Check whether the NVD record or upstream advisory gives a fixed version after 1.0.11 and whether code execution is possible beyond the crash.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["no-dirac-decoding"],"who_is_affected":"Applications that link libschroedinger through 1.0.11 and decode untrusted Dirac video streams are exposed. Systems that do not decode Dirac content, or that only decode trusted files, can skip it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000558,"input_tokens":3358,"output_tokens":445,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112053':13A,16A '-2026':12A,15A '1.0.11':69C '5':121C '6':123C '7':114C 'allow':79C 'applic':65B,127C 'attack':80C,98C 'bound':75C 'contain':70C 'craft':2A,35B,102C 'crash':9A,62B,125C 'cve':11A,14A 'decod':10A,19B,30B,64B,126C 'delay':38B,105C 'deliv':100C 'depth':52B,96C,119C 'dirac':3A,18B,31B,39B,106C 'dirac-decod':17B 'filter':48B,92C,111C 'index':49B,93C,112C 'librari':28B 'libschroeding':1A,20B,25B,67C 'low':37B,104C 'low-delay':36B,103C 'make':53B 'media':22B 'media-pipelin':21B 'out-of-bound':72C 'out-of-rang':43B 'packag':24B 'past':6A,56B,83C 'pipelin':23B 'quantis':7A,59B,86C 'rang':46B 'read':5A,55B,76C,82C 'schroeding':66C 'static':58B,85C 'stream':4A,33B,40B,107C 'suppli':89C 'tabl':8A,60B,87C 'transform':51B,95C,118C 'unvalid':90C 'valu':97C 'video':32B 'vulner':77C 'wavelet':47B,91C,110C","nicknames":[],"mitigations":[],"who_affected":"Applications that link libschroedinger through 1.0.11 and decode untrusted Dirac video streams are exposed. Systems that do not decode Dirac content, or that only decode trusted files, can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-18T13:16:37+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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-2026-112053","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112053","severity":null,"published_at":"2026-10-18T13:16:37+00:00","modified_at":"2026-10-19T21:17:06+00:00","first_seen_at":"2026-10-23T21:57:15+00:00","fetched_at":"2026-10-23T22:28:55+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"}