{"id":"CVE-2026-109097","kind":"vulnerability","aliases":["CVE-2026-109097"],"related":[],"title":"ROS#: unescaped message definition files let crafted input inject code","description":"A vulnerability has been identified in ROS# (All versions < V2.3.1). Affected systems do not properly escape text of message definition files. This could allow an attacker that is able to pass a crafted message definition file to the user to inject arbitrary code into the generated program.","summary":"ROS# (a C# library for ROS robotics messaging) does not properly escape text in message definition files, so generated code can contain injected content. An attacker who can supply a crafted message definition file can inject arbitrary code into the generated program.","severity":"high","cvss":8.6,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["csharp","package","robotics","ros#"],"not_affected_if":["fixed-message-definitions","version-2.3.1-or-later"],"how_to_check":"- Check the installed ROS# version in the project's package or dependency files; the sources only say versions below `V2.3.1` are affected\n- Look for any step in your build or code generation that consumes message definition files from untrusted sources","fix":"- ROS#: move to `V2.3.1` or later (per the product range in NVD)","status":"open","published_at":"2026-11-10T12:17:16+00:00","first_seen_at":"2026-11-10T12:21:52+00:00","triaged_at":"2026-11-10T12:22:27+00:00","updated_at":"2026-11-10T12:22:27+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-10T12:22:27Z","model":"claude-haiku-5-5","output":{"fix":"- ROS#: move to `V2.3.1` or later (per the product range in NVD)","reach":"unknown","title":"ROS#: unescaped message definition files let crafted input inject code","impact":"high","summary":"ROS# (a C# library for ROS robotics messaging) does not properly escape text in message definition files, so generated code can contain injected content. An attacker who can supply a crafted message definition file can inject arbitrary code into the generated program.","audience":"developers","category":"package","nicknames":[],"who_cares":["ros#","robotics","csharp"],"confidence":0.6,"fix_status":"available","needs_auth":"unknown","worst_case":"arbitrary code runs inside the generated program","analyst_note":"","how_to_check":"- Check the installed ROS# version in the project's package or dependency files; the sources only say versions below `V2.3.1` are affected\n- Look for any step in your build or code generation that consumes message definition files from untrusted sources","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["fixed-message-definitions","version-2.3.1-or-later"],"who_is_affected":"Teams that use ROS# to generate code from message definition files, particularly where those files come from outside sources. Projects that only use fixed, self-authored message definitions are less exposed. The sources do not say more about the exact generation path.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000703,"input_tokens":4527,"output_tokens":500,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-109097':13A,16A '-2026':12A,15A 'abl':91C 'affect':73C 'allow':86C 'arbitrari':57B,104C 'attack':46B,88C 'c':23B 'code':10A,40B,58B,105C 'contain':42B 'content':44B 'could':85C 'craft':7A,51B,95C 'csharp':17B 'cve':11A,14A 'definit':4A,36B,53B,82C,97C 'escap':32B,78C 'file':5A,37B,54B,83C,98C 'generat':39B,61B,108C 'identifi':67C 'inject':9A,43B,56B,103C 'input':8A 'let':6A 'librari':24B 'messag':3A,28B,35B,52B,81C,96C 'packag':18B 'pass':93C 'program':62B,109C 'proper':31B,77C 'robot':19B,27B 'ros':1A,20B,21B,26B,69C 'suppli':49B 'system':74C 'text':33B,79C 'unescap':2A 'user':101C 'v2.3.1':72C 'version':71C 'vulner':64C","nicknames":[],"mitigations":[],"who_affected":"Teams that use ROS# to generate code from message definition files, particularly where those files come from outside sources. Projects that only use fixed, self-authored message definitions are less exposed. The sources do not say more about the exact generation path.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"developers","plain_action":null,"pkeys":[],"ptokens":[],"labels":["csharp","high","package","robotics","ros"],"campaign_type":null,"search_a":"'-109097':13A,16A '-2026':12A,15A 'code':10A 'craft':7A 'cve':11A,14A 'definit':4A 'file':5A 'inject':9A 'input':8A 'let':6A 'messag':3A 'ros':1A 'unescap':2A","search_b":"'arbitrari':57B 'attack':46B 'c':23B 'code':40B,58B 'contain':42B 'content':44B 'craft':51B 'csharp':17B 'definit':36B,53B 'escap':32B 'file':37B,54B 'generat':39B,61B 'inject':43B,56B 'librari':24B 'messag':28B,35B,52B 'packag':18B 'program':62B 'proper':31B 'robot':19B,27B 'ros':20B,21B,26B 'suppli':49B 'text':33B","search_c":"'abl':91C 'affect':73C 'allow':86C 'arbitrari':104C 'attack':88C 'code':105C 'could':85C 'craft':95C 'definit':82C,97C 'escap':78C 'file':83C,98C 'generat':108C 'identifi':67C 'inject':103C 'messag':81C,96C 'pass':93C 'program':109C 'proper':77C 'ros':69C 'system':74C 'text':79C 'user':101C 'v2.3.1':72C 'version':71C 'vulner':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T12:17:16+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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":"productcert@siemens.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-109097","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109097","severity":null,"published_at":"2026-11-10T12:17:16+00:00","modified_at":"2026-11-10T12:17:16+00:00","first_seen_at":"2026-11-10T12:21:52+00:00","fetched_at":"2026-11-10T12:21:52+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"}