{"id":"CVE-2026-118052","kind":"vulnerability","aliases":["CVE-2026-118052"],"related":[],"title":"Eclipse ThreadX: Module Manager mutex left locked after overflow error","description":"In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, the Module Manager loaders return an overflow error without releasing the Module Manager mutex when a module preamble declares a data or stack size that overflows the allocation arithmetic. Loading such an image blocks every later module load, start, stop and unload from other threads until the system is reset.","summary":"In Eclipse ThreadX 6.0.1 through 6.5.2.202603, the Module Manager loaders return an overflow error without releasing the Module Manager mutex when a module preamble declares an oversized data or stack size. Loading such an image blocks every later module load, start, stop and unload from other threads until the system is reset.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["embedded","module-manager","rtos","runtime","threadx"],"not_affected_if":["module-manager-unused"],"how_to_check":"- Check whether the product in use is Eclipse ThreadX and its version (`6.0.1` to `6.5.2.202603` is affected per the sources)\n- Check whether the Module Manager feature is used to load modules","fix":null,"status":"open","published_at":"2026-11-02T15:17:16+00:00","first_seen_at":"2026-11-02T15:24:01+00:00","triaged_at":"2026-11-02T15:26:16+00:00","updated_at":"2026-11-02T15:26:16+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-11-02T15:26:16Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"Eclipse ThreadX: Module Manager mutex left locked after overflow error","impact":"low","summary":"In Eclipse ThreadX 6.0.1 through 6.5.2.202603, the Module Manager loaders return an overflow error without releasing the Module Manager mutex when a module preamble declares an oversized data or stack size. Loading such an image blocks every later module load, start, stop and unload from other threads until the system is reset.","audience":"businesses","category":"runtime","nicknames":[],"who_cares":["threadx","embedded","rtos","module-manager"],"confidence":0.6,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Module loading locks up until the device is reset","analyst_note":"Confirm the fixed version and whether the module loader must be fed untrusted images; check the vendor advisory linked in the sources.","how_to_check":"- Check whether the product in use is Eclipse ThreadX and its version (`6.0.1` to `6.5.2.202603` is affected per the sources)\n- Check whether the Module Manager feature is used to load modules\n- unknown whether a configuration flag is needed to enable the Module Manager","plain_action":"","needs_analyst":true,"not_affected_if":["module-manager-unused"],"who_is_affected":"Systems built on Eclipse ThreadX 6.0.1 through 6.5.2.202603 that use the Module Manager to load modules from images. A denial of service results: a single bad module image blocks all later module operations until reset. Teams not using the Module Manager, or running other ThreadX versions, can skip it.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000719,"input_tokens":4170,"output_tokens":604,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-118052':13A,16A '-2026':12A,15A '6.0.1':27B,80C '6.5.2.202603':29B,82C 'alloc':110C 'arithmet':111C 'block':59B,116C 'cve':11A,14A 'data':51B,103C 'declar':48B,101C 'eclips':1A,25B,77C 'embed':17B 'error':10A,37B,90C 'everi':60B,117C 'imag':58B,115C 'later':61B,118C 'left':6A 'load':55B,63B,112C,120C 'loader':33B,86C 'lock':7A 'manag':4A,20B,32B,42B,85C,95C 'modul':3A,19B,31B,41B,46B,62B,84C,94C,99C,119C 'module-manag':18B 'mutex':5A,43B,96C 'overflow':9A,36B,89C,108C 'overs':50B 'preambl':47B,100C 'releas':39B,92C 'reset':75B,132C 'return':34B,87C 'rtos':21B 'runtim':22B 'size':54B,106C 'stack':53B,105C 'start':64B,121C 'stop':65B,122C 'system':73B,130C 'thread':70B,127C 'threadx':2A,23B,26B,78C 'unload':67B,124C 'version':79C 'without':38B,91C","nicknames":[],"mitigations":[],"who_affected":"Systems built on Eclipse ThreadX 6.0.1 through 6.5.2.202603 that use the Module Manager to load modules from images. A denial of service results: a single bad module image blocks all later module operations until reset. Teams not using the Module Manager, or running other ThreadX versions, can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["embedded","medium","modulemanager","rtos","runtime","threadx"],"first_public_at":"2026-11-01T17:32:50+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/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":"emo@eclipse.org","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118052","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118052","severity":null,"published_at":"2026-11-02T15:17:16+00:00","modified_at":"2026-11-02T15:17:16+00:00","first_seen_at":"2026-11-02T15:24:01+00:00","fetched_at":"2026-11-02T15:24:01+00:00","note":null}],"documents":[{"id":52436,"url":"https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-67ww-q8x2-g487","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-11-01T17:32:50+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"}],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}