{"id":"CVE-2026-129357","kind":"vulnerability","aliases":["CVE-2026-129357"],"related":[],"title":"Magma: host middleware missing authorization check lets remote users bypass access control","description":"A vulnerability was determined in Linux Foundation Magma up to 1.9.0. This issue affects the function hostOrgMiddleware of the file nms/server/host/middleware.ts of the component Host Middleware. This manipulation of the argument role causes missing authorization. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.","summary":"Linux Foundation Magma up to 1.9.0 has a missing authorization flaw in the hostOrgMiddleware function of its host middleware, where the role argument is manipulated. A remote attacker can start the attack over the network, and a public exploit has been disclosed.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","magma","nms","self-hosted","telecom"],"not_affected_if":["newer-version","not-magma"],"how_to_check":"- Check the installed Magma version against `1.9.0`; versions up to and including it are listed as affected.\n- Review whether the management (NMS) server in `nms/server/host/middleware.ts` is reachable from untrusted networks.","fix":null,"status":"open","published_at":"2026-11-15T03:16:46+00:00","first_seen_at":"2026-11-15T03:33:39+00:00","triaged_at":"2026-11-15T03:34:47+00:00","updated_at":"2026-11-15T03:34:47+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-15T03:34:47Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"Magma: host middleware missing authorization check lets remote users bypass access control","impact":"medium","summary":"Linux Foundation Magma up to 1.9.0 has a missing authorization flaw in the hostOrgMiddleware function of its host middleware, where the role argument is manipulated. A remote attacker can start the attack over the network, and a public exploit has been disclosed.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["magma","self-hosted","telecom","nms"],"confidence":0.6,"fix_status":"unknown","needs_auth":"unknown","worst_case":"remote attacker bypasses authorization on the Magma management server","analyst_note":"Confirm the affected Magma versions, whether a fix or patch exists, and the auth requirement via the NVD entry and the project's repository.","how_to_check":"- Check the installed Magma version against `1.9.0`; versions up to and including it are listed as affected.\n- Review whether the management (NMS) server in `nms/server/host/middleware.ts` is reachable from untrusted networks.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["not-magma","newer-version"],"who_is_affected":"Teams running Magma up to version 1.9.0, the open-source mobile core network platform, especially its NMS server exposed beyond trusted networks. Deployments not running Magma or running a newer version are not listed as affected. The sources do not say whether a patched version exists, and the vendor did not respond to early disclosure.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000753,"input_tokens":4593,"output_tokens":588,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-129357':15A,18A '-2026':14A,17A '1.9.0':31B,78C 'access':11A 'affect':81C 'argument':48B,98C 'attack':53B,57B,109C 'author':5A,35B,102C 'bypass':10A 'caus':100C 'check':6A 'compon':91C 'contact':124C 'control':12A 'cve':13A,16A 'determin':71C 'disclos':67B,116C 'disclosur':128C 'earli':125C 'exploit':64B,112C 'file':87C 'flaw':36B 'foundat':27B,74C 'function':40B,83C 'host':2A,24B,43B,92C 'hostorgmiddlewar':39B,84C 'infrastructur':19B 'initi':107C 'issu':80C 'let':7A 'linux':26B,73C 'magma':1A,20B,28B,75C 'manipul':50B,95C 'may':118C 'middlewar':3A,44B,93C 'miss':4A,34B,101C 'network':60B 'nms':21B 'nms/server/host/middleware.ts':88C 'possibl':105C 'public':63B,115C 'remot':8A,52B,110C 'respond':132C 'role':47B,99C 'self':23B 'self-host':22B 'start':55B 'telecom':25B 'user':9A 'util':120C 'vendor':122C 'vulner':69C 'way':135C","nicknames":[],"mitigations":[],"who_affected":"Teams running Magma up to version 1.9.0, the open-source mobile core network platform, especially its NMS server exposed beyond trusted networks. Deployments not running Magma or running a newer version are not listed as affected. The sources do not say whether a patched version exists, and the vendor did not respond to early disclosure.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["infrastructure","magma","medium","nms","selfhosted","telecom"],"campaign_type":null,"search_a":"'-129357':15A,18A '-2026':14A,17A 'access':11A 'author':5A 'bypass':10A 'check':6A 'control':12A 'cve':13A,16A 'host':2A 'let':7A 'magma':1A 'middlewar':3A 'miss':4A 'remot':8A 'user':9A","search_b":"'1.9.0':31B 'argument':48B 'attack':53B,57B 'author':35B 'disclos':67B 'exploit':64B 'flaw':36B 'foundat':27B 'function':40B 'host':24B,43B 'hostorgmiddlewar':39B 'infrastructur':19B 'linux':26B 'magma':20B,28B 'manipul':50B 'middlewar':44B 'miss':34B 'network':60B 'nms':21B 'public':63B 'remot':52B 'role':47B 'self':23B 'self-host':22B 'start':55B 'telecom':25B","search_c":"'1.9.0':78C 'affect':81C 'argument':98C 'attack':109C 'author':102C 'caus':100C 'compon':91C 'contact':124C 'determin':71C 'disclos':116C 'disclosur':128C 'earli':125C 'exploit':112C 'file':87C 'foundat':74C 'function':83C 'host':92C 'hostorgmiddlewar':84C 'initi':107C 'issu':80C 'linux':73C 'magma':75C 'manipul':95C 'may':118C 'middlewar':93C 'miss':101C 'nms/server/host/middleware.ts':88C 'possibl':105C 'public':115C 'remot':110C 'respond':132C 'role':99C 'util':120C 'vendor':122C 'vulner':69C 'way':135C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-15T03:16:46+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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":"cna@vuldb.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-129357","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-129357","severity":null,"published_at":"2026-11-15T03:16:46+00:00","modified_at":"2026-11-15T03:16:50+00:00","first_seen_at":"2026-11-15T03:33:39+00:00","fetched_at":"2026-11-15T03:33:39+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"}