{"id":"CVE-2026-115333","summary":"Lotus through 0.10.2 Improper Authentication via Event Ingestion API Key Prefix","details":"Lotus through 0.10.2 contains an improper authentication vulnerability in the Go event ingestion middleware that validates API keys by prefix only, without checking the secret against the stored hashed_key. Attackers who know or obtain an API key prefix can submit usage events to POST /api/track/ as that organization, altering its metered usage and billing.","modified":"2026-10-23T02:45:54.432804388Z","published":"2026-10-22T10:57:49.499Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115333.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115333.json"},{"type":"PACKAGE","url":"https://github.com/uselotus/lotus"},{"type":"ARTICLE","url":"https://github.com/uselotus/lotus/blob/0.10.2/go/event-ingestion/authn/authn.go#L85-L95"},{"type":"ARTICLE","url":"https://hackmd.io/@leediay/BkUc3WL2Mx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115333"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/lotus-through-0.10.2-improper-authentication-via-event-ingestion-api-key-prefix"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/uselotus/lotus","events":[{"introduced":"0"},{"last_affected":"f908380b324045f6b160cd3245c5b632e479a63b"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"0.10.2"}],"source":"AFFECTED_FIELD"}]}}],"versions":["0.10.2","0.10.1","0.10.0","0.9.4","0.9.3","0.9.2","0.9.1","0.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-115333.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}