{"id":"CVE-2026-121940","kind":"vulnerability","aliases":["CVE-2026-121940"],"related":[],"title":"ai-fusion-video: missing ownership checks let users read and delete others' projects","description":"Stonewuu ai-fusion-video before 1.3.0 contains an insecure direct object reference vulnerability that allows authenticated users to access other users' projects by supplying unscoped object ids. Attackers can enumerate auto-increment ids on /api/project, /api/asset and /api/script handlers to read, overwrite, cascade-delete data, and add themselves as project members.","summary":"Stonewuu ai-fusion-video before 1.3.0 does not check that an object id belongs to the requesting user on its project, asset and script API handlers. A logged-in user can enumerate sequential ids to read, overwrite or cascade-delete other users' projects and add themselves as members.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ai-fusion-video","ai-tooling","self-hosted","video-generation"],"not_affected_if":["no-untrusted-accounts","single-user"],"how_to_check":"- Check the installed ai-fusion-video version against the fixed release 1.3.0 in your deployment or `package.json`\n- Review whether `/api/project`, `/api/asset` and `/api/script` are reachable by user accounts other than your own","fix":"- ai-fusion-video: upgrade to `1.3.0` or later (per the patch linked in the sources)","status":"open","published_at":"2026-11-04T13:17:28+00:00","first_seen_at":"2026-11-04T13:27:03+00:00","triaged_at":"2026-11-04T13:27:50+00:00","updated_at":"2026-11-04T13:27:50+00:00","category":"ai-tooling","confidence":0.8,"triage":{"at":"2026-11-04T13:27:50Z","model":"claude-haiku-5-5","output":{"fix":"- ai-fusion-video: upgrade to `1.3.0` or later (per the patch linked in the sources)","reach":"network","title":"ai-fusion-video: missing ownership checks let users read and delete others' projects","impact":"high","summary":"Stonewuu ai-fusion-video before 1.3.0 does not check that an object id belongs to the requesting user on its project, asset and script API handlers. A logged-in user can enumerate sequential ids to read, overwrite or cascade-delete other users' projects and add themselves as members.","audience":"businesses","category":"ai-tooling","nicknames":[],"who_cares":["ai-fusion-video","self-hosted","video-generation"],"confidence":0.8,"fix_status":"available","needs_auth":"yes","worst_case":"other users' projects read, overwritten, deleted, or attacker added as member","analyst_note":"","how_to_check":"- Check the installed ai-fusion-video version against the fixed release 1.3.0 in your deployment or `package.json`\n- Review whether `/api/project`, `/api/asset` and `/api/script` are reachable by user accounts other than your own","plain_action":"","needs_analyst":false,"not_affected_if":["single-user","no-untrusted-accounts"],"who_is_affected":"Teams that run ai-fusion-video as a shared, multi-user service are exposed, because any authenticated account can reach other users' records by guessing ids. Single-user local installs with only one account are less exposed. The sources do not say whether the default configuration enables multi-user access.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000701,"input_tokens":4188,"output_tokens":565,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-121940':17A,20A '-2026':16A,19A '/api/asset':122C '/api/project':121C '/api/script':124C '1.3.0':40B,91C 'access':104C 'add':81B,134C 'ai':2A,22B,26B,36B,87C 'ai-fusion-video':1A,21B,35B,86C 'ai-tool':25B 'allow':100C 'api':59B 'asset':56B 'attack':113C 'authent':101C 'auto':117C 'auto-incr':116C 'belong':48B 'cascad':75B,130C 'cascade-delet':74B,129C 'check':7A,43B 'contain':92C 'cve':15A,18A 'data':132C 'delet':12A,76B,131C 'direct':95C 'enumer':67B,115C 'fusion':3A,23B,37B,88C 'generat':33B 'handler':60B,125C 'host':30B 'id':47B,69B,112C,119C 'increment':118C 'insecur':94C 'let':8A 'log':63B 'logged-in':62B 'member':84B,138C 'miss':5A 'object':46B,96C,111C 'other':13A 'overwrit':72B,128C 'ownership':6A 'project':14A,55B,79B,107C,137C 'read':10A,71B,127C 'refer':97C 'request':51B 'script':58B 'self':29B 'self-host':28B 'sequenti':68B 'stonewuu':34B,85C 'suppli':109C 'tool':27B 'unscop':110C 'user':9A,52B,65B,78B,102C,106C 'video':4A,24B,32B,38B,89C 'video-gener':31B 'vulner':98C","nicknames":[],"mitigations":[],"who_affected":"Teams that run ai-fusion-video as a shared, multi-user service are exposed, because any authenticated account can reach other users' records by guessing ids. Single-user local installs with only one account are less exposed. The sources do not say whether the default configuration enables multi-user access.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["aifusionvideo","aitooling","high","selfhosted","videogeneration"],"campaign_type":null,"first_public_at":"2026-11-04T13:17:28+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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-2026-121940","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121940","severity":null,"published_at":"2026-11-04T13:17:28+00:00","modified_at":"2026-11-04T13:17:28+00:00","first_seen_at":"2026-11-04T13:27:03+00:00","fetched_at":"2026-11-04T13:27:03+00:00","note":null}],"documents":[{"id":67082,"url":"https://github.com/Stonewuu/ai-fusion-video/commit/4724a1a4173171c3d4d067f38840a6093a8c4d46","title":"Patch: github.com","kind":"other","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":67083,"url":"https://www.vulncheck.com/advisories/stonewuu-ai-fusion-video-before-1.3.0-idor-via-project-asset-and-script-controllers","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.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"}