{"id":"CVE-2026-112013","kind":"vulnerability","aliases":["CVE-2026-112013"],"related":[],"title":"libtta: crafted TTA file with zero sample rate crashes decoder","description":"libtta through 2.3 contains a divide-by-zero vulnerability in tta_decoder_init_get_info() that allows attackers to crash applications by supplying an unvalidated zero sample rate. Attackers can craft a .tta file with a recomputed header CRC32 that triggers SIGFPE, crashing applications including the bundled tta console tool.","summary":"libtta is a C library for decoding True Audio (TTA) files; through version 2.3, tta_decoder_init_get_info() divides by a sample rate read from the file without checking it is non-zero. An attacker who supplies a .tta file with a zero sample rate and a recomputed header CRC32 makes the application crash with SIGFPE.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["audio-decoding","c","libtta","package"],"not_affected_if":["libtta-not-used","no-untrusted-tta-input"],"how_to_check":"- Check whether the project uses libtta by searching dependencies and sources for `libtta` or `tta_decoder_init_get_info`\n- Check the installed version with `unknown` if the sources do not give a command; the affected range is through `2.3`","fix":"- unknown: the sources do not name a fixed version or patch; check the upstream libtta repository for a release after `2.3`\n- Until patched, reject .tta files whose header sample rate is zero before passing them to the decoder","status":"open","published_at":"2026-10-18T12:17:14+00:00","first_seen_at":"2026-10-23T21:57:15+00:00","triaged_at":"2026-10-25T03:45:03+00:00","updated_at":"2026-10-25T03:45:03+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:45:03Z","model":"claude-haiku-5-5","output":{"fix":"- unknown: the sources do not name a fixed version or patch; check the upstream libtta repository for a release after `2.3`\n- Until patched, reject .tta files whose header sample rate is zero before passing them to the decoder","reach":"local","title":"libtta: crafted TTA file with zero sample rate crashes decoder","impact":"low","summary":"libtta is a C library for decoding True Audio (TTA) files; through version 2.3, tta_decoder_init_get_info() divides by a sample rate read from the file without checking it is non-zero. An attacker who supplies a .tta file with a zero sample rate and a recomputed header CRC32 makes the application crash with SIGFPE.","category":"package","nicknames":[],"who_cares":["libtta","c","audio-decoding"],"confidence":0.6,"needs_auth":"no","worst_case":"Application crashes from a divide-by-zero, causing denial of service","analyst_note":"Confirm the fixed version and whether a patch exists; the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-112013 may not list one.","how_to_check":"- Check whether the project uses libtta by searching dependencies and sources for `libtta` or `tta_decoder_init_get_info`\n- Check the installed version with `unknown` if the sources do not give a command; the affected range is through `2.3`","needs_analyst":true,"not_affected_if":["no-untrusted-tta-input","libtta-not-used"],"who_is_affected":"Applications that decode untrusted .tta audio files with libtta, including the bundled tta console tool, are exposed to a crash from a crafted file. Systems that only process trusted local audio files, or do not use libtta at all, can skip it.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000649,"input_tokens":3343,"output_tokens":630,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112013':13A,16A '-2026':12A,15A '2.3':36B,83C 'allow':98C 'applic':77B,102C,125C 'attack':59B,99C,110C 'audio':18B,31B 'audio-decod':17B 'bundl':128C 'c':20B,26B 'check':52B 'consol':130C 'contain':84C 'craft':2A,112C 'crash':9A,78B,101C,124C 'crc32':74B,120C 'cve':11A,14A 'decod':10A,19B,29B,38B,93C 'divid':42B,87C 'divide-by-zero':86C 'file':4A,33B,50B,64B,115C 'get':40B,95C 'header':73B,119C 'includ':126C 'info':41B,96C 'init':39B,94C 'librari':27B 'libtta':1A,21B,23B,81C 'make':75B 'non':56B 'non-zero':55B 'packag':22B 'rate':8A,46B,69B,109C 'read':47B 'recomput':72B,118C 'sampl':7A,45B,68B,108C 'sigfp':80B,123C 'suppli':61B,104C 'tool':131C 'trigger':122C 'true':30B 'tta':3A,32B,37B,63B,92C,114C,129C 'unvalid':106C 'version':35B 'vulner':90C 'without':51B 'zero':6A,57B,67B,89C,107C","nicknames":[],"mitigations":[],"who_affected":"Applications that decode untrusted .tta audio files with libtta, including the bundled tta console tool, are exposed to a crash from a crafted file. Systems that only process trusted local audio files, or do not use libtta at all, can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-18T12:17:14+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-2026-112013","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112013","severity":null,"published_at":"2026-10-18T12:17:14+00:00","modified_at":"2026-10-19T21:14:14+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"}